File size: 24,536 Bytes
ec4ae03
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
#!/usr/bin/env python3
"""
AxiomForgeAI β€” Training Results Plots
======================================
Reads the metrics CSV from a GRPO training run and generates five focused plots
that tell the story of what improved, how self-play was earned, and why step-level
reasoning quality matters as much as final-answer accuracy.

All plots are saved to images/ as high-resolution PNGs.

Usage
-----
  python scripts/plot_training_results.py
  python scripts/plot_training_results.py --metrics logs/grpo/grpo_20260426_032827/metrics.csv
  python scripts/plot_training_results.py --out images/
"""

from __future__ import annotations

import argparse
import csv
from pathlib import Path
from typing import Dict, List

import matplotlib
matplotlib.use("Agg")
import matplotlib.pyplot as plt
import matplotlib.patches as mpatches
import numpy as np

# ── Style ──────────────────────────────────────────────────────────────────────
PALETTE = {
    "indigo":    "#6366f1",
    "pink":      "#ec4899",
    "cyan":      "#06b6d4",
    "amber":     "#f59e0b",
    "emerald":   "#10b981",
    "slate":     "#94a3b8",
    "red":       "#ef4444",
    "violet":    "#8b5cf6",
    "white":     "#f8fafc",
    "bg":        "#0f172a",
    "bg2":       "#1e293b",
    "gridline":  "#1e293b",
}

plt.rcParams.update({
    "figure.facecolor":  PALETTE["bg"],
    "axes.facecolor":    PALETTE["bg"],
    "axes.edgecolor":    PALETTE["slate"],
    "axes.labelcolor":   PALETTE["white"],
    "axes.titlecolor":   PALETTE["white"],
    "axes.titlesize":    13,
    "axes.labelsize":    11,
    "axes.grid":         True,
    "grid.color":        "#1e293b",
    "grid.linewidth":    0.8,
    "xtick.color":       PALETTE["slate"],
    "ytick.color":       PALETTE["slate"],
    "xtick.labelsize":   9,
    "ytick.labelsize":   9,
    "legend.facecolor":  "#1e293b",
    "legend.edgecolor":  PALETTE["slate"],
    "legend.labelcolor": PALETTE["white"],
    "legend.fontsize":   9,
    "text.color":        PALETTE["white"],
    "font.family":       "sans-serif",
    "lines.linewidth":   2.0,
})

PHASE_COLORS = {
    "GROUNDED_ONLY":  ("#6366f120", "#6366f1"),
    "SELFPLAY_RAMP":  ("#10b98120", "#10b981"),
}

DPI = 160
IMAGES_DIR = Path("images")

DEFAULT_METRICS = (
    "logs/grpo/grpo_20260426_032827/metrics.csv"
)


# ── Helpers ────────────────────────────────────────────────────────────────────

def load_csv(path: str) -> List[Dict]:
    rows = []
    with open(path, encoding="utf-8") as f:
        for r in csv.DictReader(f):
            rows.append({k: v for k, v in r.items()})
    return rows


def f(row: Dict, key: str, default: float = float("nan")) -> float:
    v = row.get(key, "")
    try:
        return float(v) if v != "" else default
    except (ValueError, TypeError):
        return default


def moving_avg(values: List[float], w: int = 3) -> List[float]:
    result = []
    for i in range(len(values)):
        lo = max(0, i - w + 1)
        chunk = [v for v in values[lo : i + 1] if not np.isnan(v)]
        result.append(float(np.mean(chunk)) if chunk else float("nan"))
    return result


def shade_phases(ax, iters, phases):
    """Draw translucent background rectangles for each training phase."""
    prev_phase, start = None, iters[0]
    for it, ph in zip(iters, phases):
        if ph != prev_phase:
            if prev_phase is not None:
                bg, _ = PHASE_COLORS.get(prev_phase, ("#ffffff10", "#ffffff"))
                ax.axvspan(start - 0.5, it - 0.5, facecolor=bg, linewidth=0, zorder=0)
            prev_phase, start = ph, it
    if prev_phase is not None:
        bg, _ = PHASE_COLORS.get(prev_phase, ("#ffffff10", "#ffffff"))
        ax.axvspan(start - 0.5, iters[-1] + 0.5, facecolor=bg, linewidth=0, zorder=0)


def phase_legend_patches(phases):
    seen = []
    patches = []
    for ph in phases:
        if ph not in seen:
            seen.append(ph)
            _, edge = PHASE_COLORS.get(ph, ("#ffffff10", "#ffffff"))
            label = ph.replace("_", " ").title()
            patches.append(mpatches.Patch(facecolor=edge + "40", edgecolor=edge,
                                          linewidth=1.2, label=label))
    return patches


def annotate_transition(ax, x_iter, label, ypos=0.97, color="#94a3b8"):
    ax.axvline(x=x_iter - 0.5, color=color, linewidth=1, linestyle="--", alpha=0.7)
    ax.text(x_iter, ypos, label, transform=ax.get_xaxis_transform(),
            fontsize=7.5, color=color, ha="left", va="top",
            bbox=dict(facecolor=PALETTE["bg2"], edgecolor="none", pad=2))


def save(fig: plt.Figure, name: str, out: Path):
    out.mkdir(parents=True, exist_ok=True)
    path = out / name
    fig.savefig(path, dpi=DPI, bbox_inches="tight", facecolor=fig.get_facecolor())
    print(f"  βœ“  {path}")
    plt.close(fig)


# ══════════════════════════════════════════════════════════════════════════════
# PLOT 1 β€” Hero: Reasoning quality at evaluation checkpoints
# Shows four signals together: GSM8K accuracy, combined score, step accuracy,
# and LCCP.  The message: the model doesn't just get more answers right β€”
# every step of the reasoning chain gets better.
# ══════════════════════════════════════════════════════════════════════════════

def plot_eval_quality(rows: List[Dict], out: Path):
    eval_rows = [r for r in rows if r.get("eval_combined", "") != ""]
    iters     = [int(r["iteration"]) for r in eval_rows]

    gsm8k_acc  = [f(r, "eval_correct_rt") * 100 for r in eval_rows]
    combined   = [f(r, "eval_combined") * 100    for r in eval_rows]
    step_acc   = [f(r, "eval_step_acc") * 100    for r in eval_rows]
    lccp       = [f(r, "eval_lccp") * 100        for r in eval_rows]
    prm        = [f(r, "eval_prm") * 100         for r in eval_rows]

    fig, ax = plt.subplots(figsize=(9, 5))
    fig.suptitle("Evaluation Quality Over Training β€” AxiomForgeAI",
                 fontsize=14, fontweight="bold", color=PALETTE["white"], y=1.01)

    # --- lines
    ax.plot(iters, gsm8k_acc, "o-",  color=PALETTE["pink"],    label="GSM8K Accuracy (final answer)", ms=7, zorder=5)
    ax.plot(iters, combined,  "s-",  color=PALETTE["indigo"],  label="Combined Score",                 ms=6, zorder=5)
    ax.plot(iters, step_acc,  "^-",  color=PALETTE["cyan"],    label="Step Accuracy (reasoning chain)", ms=6, zorder=5)
    ax.plot(iters, lccp,      "D-",  color=PALETTE["emerald"], label="LCCP (chain integrity)",          ms=6, zorder=5)
    ax.plot(iters, prm,       "v--", color=PALETTE["amber"],   label="PRM Mean Score",                  ms=5, alpha=0.8, zorder=4)

    # annotate best GSM8K
    best_gsm = max(gsm8k_acc)
    bi = gsm8k_acc.index(best_gsm)
    ax.annotate(f"  {best_gsm:.1f}%",
                xy=(iters[bi], best_gsm), fontsize=9, color=PALETTE["pink"],
                va="bottom", ha="left")

    # annotate best combined
    best_c = max(combined)
    bci = combined.index(best_c)
    ax.annotate(f"  {best_c:.1f}",
                xy=(iters[bci], best_c), fontsize=9, color=PALETTE["indigo"],
                va="top", ha="left")

    ax.set_xlabel("Training Iteration")
    ax.set_ylabel("Score (%)")
    ax.set_xticks(iters)
    ax.set_ylim(78, 96)
    ax.yaxis.set_major_formatter(matplotlib.ticker.FormatStrFormatter("%.0f%%"))
    ax.legend(loc="lower right", framealpha=0.8)
    ax.set_title(
        "Four angles on quality β€” answer correctness, holistic score, per-step reasoning, and chain integrity",
        fontsize=9, color=PALETTE["slate"], pad=6,
    )

    fig.tight_layout()
    save(fig, "plot1_eval_quality.png", out)


# ══════════════════════════════════════════════════════════════════════════════
# PLOT 2 β€” Training Journey: full 30-iteration timeline with phase shading
# Shows mean reward, GT match rate, and step accuracy over every iteration.
# Phase backgrounds show when self-play unlocked and the curriculum ramped.
# ══════════════════════════════════════════════════════════════════════════════

def plot_training_journey(rows: List[Dict], out: Path):
    iters      = [int(r["iteration"]) for r in rows]
    phases     = [r["training_phase"] for r in rows]
    mean_r     = [f(r, "mean_reward") * 100      for r in rows]
    gt_match   = [f(r, "gt_match_rate") * 100    for r in rows]
    step_acc   = [f(r, "step_accuracy") * 100    for r in rows]
    batch_acc  = [f(r, "batch_accuracy") * 100   for r in rows]

    ma_reward = moving_avg(mean_r,   w=4)
    ma_gt     = moving_avg(gt_match, w=4)
    ma_step   = moving_avg(step_acc, w=4)

    fig, ax = plt.subplots(figsize=(11, 5))
    shade_phases(ax, iters, phases)

    # raw (faint)
    ax.plot(iters, mean_r,   alpha=0.25, color=PALETTE["indigo"],  linewidth=1)
    ax.plot(iters, gt_match, alpha=0.25, color=PALETTE["pink"],    linewidth=1)
    ax.plot(iters, step_acc, alpha=0.25, color=PALETTE["cyan"],    linewidth=1)

    # smoothed (bold)
    ax.plot(iters, ma_reward, color=PALETTE["indigo"],  linewidth=2.5, label="Mean Reward (smooth)")
    ax.plot(iters, ma_gt,     color=PALETTE["pink"],    linewidth=2.5, label="GT Match Rate (smooth)")
    ax.plot(iters, ma_step,   color=PALETTE["cyan"],    linewidth=2.5, label="Step Accuracy (smooth)")

    # self-play transition annotation
    sp_start = next(i for i, p in enumerate(phases) if p == "SELFPLAY_RAMP")
    annotate_transition(ax, iters[sp_start], "Self-play\nunlocked", ypos=0.98,
                        color=PALETTE["emerald"])

    ax.set_xlabel("Training Iteration")
    ax.set_ylabel("Score (%)")
    ax.set_ylim(55, 105)
    ax.yaxis.set_major_formatter(matplotlib.ticker.FormatStrFormatter("%.0f%%"))
    ax.set_xticks(range(1, max(iters) + 1, 2))
    ax.set_title("30-Iteration GRPO Training Timeline  |  Faint = raw  Β·  Bold = 4-iter moving average",
                 fontsize=9, color=PALETTE["slate"], pad=6)
    fig.suptitle("Training Journey β€” Reward, GT Match & Step Accuracy",
                 fontsize=14, fontweight="bold", color=PALETTE["white"], y=1.01)

    legend_patches = phase_legend_patches(phases)
    h, l = ax.get_legend_handles_labels()
    ax.legend(handles=h + legend_patches, loc="lower right", framealpha=0.8, ncol=2)

    fig.tight_layout()
    save(fig, "plot2_training_journey.png", out)


# ══════════════════════════════════════════════════════════════════════════════
# PLOT 3 β€” Self-Play Success: the curriculum earning its right to generate
# Shows the self-play ratio ramping up while question quality stays high.
# The headline: by iteration 30 more than 60% of training is model-generated,
# and those questions are 95-100% solvable and genuinely novel.
# ══════════════════════════════════════════════════════════════════════════════

def plot_selfplay_success(rows: List[Dict], out: Path):
    sp_rows = [r for r in rows if f(r, "q_reward") > 0]
    iters   = [int(r["iteration"]) for r in sp_rows]
    sp_rat  = [f(r, "sp_ratio") * 100      for r in sp_rows]
    q_sol   = [f(r, "q_solvability") * 100 for r in sp_rows]
    q_nov   = [f(r, "q_novelty") * 100     for r in sp_rows]
    q_rew   = [f(r, "q_reward") * 100      for r in sp_rows]

    fig, ax1 = plt.subplots(figsize=(10, 5))
    ax2 = ax1.twinx()
    ax2.tick_params(axis="y", labelcolor=PALETTE["slate"])
    ax2.spines["right"].set_color(PALETTE["slate"])

    # self-play ramp (left axis)
    ax1.fill_between(iters, sp_rat, alpha=0.18, color=PALETTE["emerald"])
    ax1.plot(iters, sp_rat, "o-", color=PALETTE["emerald"], ms=6,
             label="Self-play ratio", linewidth=2.5)
    ax1.set_ylabel("Self-play share of training (%)", color=PALETTE["emerald"])
    ax1.tick_params(axis="y", labelcolor=PALETTE["emerald"])
    ax1.set_ylim(0, 80)

    # question quality (right axis)
    ax2.plot(iters, q_sol, "s--", color=PALETTE["cyan"],    ms=5, label="Solvability",   linewidth=1.8)
    ax2.plot(iters, q_nov, "^--", color=PALETTE["amber"],   ms=5, label="Novelty",        linewidth=1.8)
    ax2.plot(iters, q_rew, "D--", color=PALETTE["pink"],    ms=5, label="Q-Reward",       linewidth=1.8)
    ax2.set_ylabel("Question quality score (%)", color=PALETTE["slate"])
    ax2.set_ylim(0, 115)

    # merge legends
    h1, l1 = ax1.get_legend_handles_labels()
    h2, l2 = ax2.get_legend_handles_labels()
    ax1.legend(h1 + h2, l1 + l2, loc="upper left", framealpha=0.8)

    ax1.set_xlabel("Training Iteration")
    ax1.set_xticks(iters)
    ax1.yaxis.set_major_formatter(matplotlib.ticker.FormatStrFormatter("%.0f%%"))
    ax2.yaxis.set_major_formatter(matplotlib.ticker.FormatStrFormatter("%.0f%%"))

    # annotate final sp ratio
    ax1.annotate(f"  {sp_rat[-1]:.0f}% self-play\n  by iter {iters[-1]}",
                 xy=(iters[-1], sp_rat[-1]), fontsize=9, color=PALETTE["emerald"],
                 va="center", ha="left")

    fig.suptitle("Self-Play Curriculum β€” The Model Earns Its Own Training Data",
                 fontsize=14, fontweight="bold", color=PALETTE["white"], y=1.01)
    ax1.set_title(
        "Self-play ratio ramps from 0 β†’ 61%  Β·  Generated questions stay 93-100% solvable throughout",
        fontsize=9, color=PALETTE["slate"], pad=6,
    )
    fig.tight_layout()
    save(fig, "plot3_selfplay_success.png", out)


# ══════════════════════════════════════════════════════════════════════════════
# PLOT 4 β€” Reward Signal Tightening: mean Β± std over 30 iterations
# As the policy learns what "good" looks like, the spread between the best
# and worst solutions in a group narrows.  Lower variance = more consistent
# reasoning, not lucky guessing.
# ══════════════════════════════════════════════════════════════════════════════

def plot_reward_confidence(rows: List[Dict], out: Path):
    iters   = [int(r["iteration"]) for r in rows]
    phases  = [r["training_phase"]  for r in rows]
    mean_r  = np.array([f(r, "mean_reward")  for r in rows])
    std_r   = np.array([f(r, "std_reward")   for r in rows])
    skipped = np.array([f(r, "skipped_groups", 0) for r in rows])
    n_grps  = np.array([f(r, "n_groups", 1)        for r in rows])
    skip_rt = skipped / np.maximum(n_grps, 1) * 100

    fig, (ax1, ax2) = plt.subplots(2, 1, figsize=(11, 7), sharex=True,
                                    gridspec_kw={"height_ratios": [3, 1.2]})
    fig.suptitle("Reward Confidence β€” Mean Β± Std  &  Skipped Groups Over 30 Iterations",
                 fontsize=14, fontweight="bold", color=PALETTE["white"], y=1.01)

    shade_phases(ax1, iters, phases)

    ax1.fill_between(iters, (mean_r - std_r) * 100, (mean_r + std_r) * 100,
                     alpha=0.20, color=PALETTE["indigo"])
    ax1.plot(iters, mean_r * 100, color=PALETTE["indigo"], linewidth=2.5, label="Mean reward")
    ax1.plot(iters, (mean_r - std_r) * 100, "--", color=PALETTE["slate"], linewidth=1,
             alpha=0.6, label="Β±1 std")
    ax1.plot(iters, (mean_r + std_r) * 100, "--", color=PALETTE["slate"], linewidth=1,
             alpha=0.6)

    # highlight the two tight-cluster peaks
    for special_iter, label in [(11, "iter 11\nstd=0.098"), (22, "iter 22\nstd=0.124")]:
        si = iters.index(special_iter)
        ax1.annotate(label,
                     xy=(special_iter, (mean_r[si] + std_r[si]) * 100),
                     xytext=(special_iter + 1, (mean_r[si] + std_r[si]) * 100 + 2),
                     fontsize=8, color=PALETTE["amber"],
                     arrowprops=dict(arrowstyle="->", color=PALETTE["amber"], lw=1.2))

    ax1.set_ylabel("Reward (%)")
    ax1.set_ylim(55, 115)
    ax1.yaxis.set_major_formatter(matplotlib.ticker.FormatStrFormatter("%.0f%%"))
    h1, l1 = ax1.get_legend_handles_labels()
    ax1.legend(handles=h1 + phase_legend_patches(phases), framealpha=0.8, ncol=3)

    # skip-rate bar chart (bottom panel)
    shade_phases(ax2, iters, phases)
    ax2.bar(iters, skip_rt, color=PALETTE["red"], alpha=0.7, width=0.7, label="Skipped groups %")
    ax2.set_ylabel("Skipped\ngroups (%)")
    ax2.set_xlabel("Training Iteration")
    ax2.set_ylim(0, 75)
    ax2.set_xticks(range(1, max(iters) + 1, 2))
    ax2.yaxis.set_major_formatter(matplotlib.ticker.FormatStrFormatter("%.0f%%"))
    ax2.legend(loc="upper right", framealpha=0.8)

    fig.tight_layout()
    save(fig, "plot4_reward_confidence.png", out)


# ══════════════════════════════════════════════════════════════════════════════
# PLOT 5 β€” Step-Level Reasoning Quality: train vs eval
# Breaks down the two signals that measure HOW the model thinks (not just
# whether it gets the final answer right): step accuracy and LCCP.
# Train lines are noisy; eval lines show clean upward trends.
# ══════════════════════════════════════════════════════════════════════════════

def plot_reasoning_quality(rows: List[Dict], out: Path):
    iters   = [int(r["iteration"]) for r in rows]
    phases  = [r["training_phase"] for r in rows]

    # training
    t_step  = [f(r, "step_accuracy") * 100 for r in rows]
    t_lccp  = [f(r, "lccp") * 100          for r in rows]
    t_gt    = [f(r, "gt_match_rate") * 100 for r in rows]

    # eval (only at checkpoint iters)
    eval_rows  = [r for r in rows if r.get("eval_combined", "") != ""]
    e_iters    = [int(r["iteration"])        for r in eval_rows]
    e_step     = [f(r, "eval_step_acc") * 100 for r in eval_rows]
    e_lccp     = [f(r, "eval_lccp") * 100     for r in eval_rows]

    # moving averages
    ma_step = moving_avg(t_step, w=4)
    ma_lccp = moving_avg(t_lccp, w=4)
    ma_gt   = moving_avg(t_gt,   w=4)

    fig, (ax1, ax2) = plt.subplots(1, 2, figsize=(13, 5.5))
    fig.suptitle("Step-Level Reasoning Quality β€” Training vs Held-Out Evaluation",
                 fontsize=14, fontweight="bold", color=PALETTE["white"], y=1.01)

    # ── LEFT: step accuracy ──
    shade_phases(ax1, iters, phases)
    ax1.plot(iters, t_step,  alpha=0.2,  color=PALETTE["cyan"],  linewidth=1)
    ax1.plot(iters, ma_step, color=PALETTE["cyan"],  linewidth=2.5, label="Train step acc (smooth)")
    ax1.plot(iters, t_gt,    alpha=0.15, color=PALETTE["pink"],  linewidth=1)
    ax1.plot(iters, ma_gt,   color=PALETTE["pink"],  linewidth=2.5, label="Train GT match (smooth)")
    ax1.plot(e_iters, e_step, "o-", color=PALETTE["white"], ms=8, linewidth=2,
             label="Eval step accuracy", zorder=6)

    # annotate eval start/end
    ax1.annotate(f"{e_step[0]:.1f}%",  xy=(e_iters[0], e_step[0]),
                 xytext=(e_iters[0] - 0.3, e_step[0] - 1.2), fontsize=8.5,
                 color=PALETTE["white"], ha="right")
    ax1.annotate(f"{e_step[-1]:.1f}%", xy=(e_iters[-1], e_step[-1]),
                 xytext=(e_iters[-1] + 0.3, e_step[-1] + 0.5), fontsize=8.5,
                 color=PALETTE["white"])
    ax1.annotate("", xy=(e_iters[-1], e_step[-1]),
                 xytext=(e_iters[0], e_step[0]),
                 arrowprops=dict(arrowstyle="->", color=PALETTE["cyan"], lw=1.5,
                                 connectionstyle="arc3,rad=-0.3"))

    ax1.set_title("Step Accuracy  β€”  Did each reasoning step hold up?",
                  fontsize=9.5, color=PALETTE["slate"], pad=5)
    ax1.set_xlabel("Training Iteration")
    ax1.set_ylabel("Score (%)")
    ax1.set_ylim(55, 105)
    ax1.set_xticks(range(1, max(iters) + 1, 3))
    ax1.yaxis.set_major_formatter(matplotlib.ticker.FormatStrFormatter("%.0f%%"))
    ax1.legend(handles=ax1.get_legend_handles_labels()[0] + phase_legend_patches(phases),
               framealpha=0.8, ncol=1, loc="lower right")

    # ── RIGHT: LCCP ──
    shade_phases(ax2, iters, phases)
    ax2.plot(iters, t_lccp,  alpha=0.2,  color=PALETTE["emerald"], linewidth=1)
    ax2.plot(iters, ma_lccp, color=PALETTE["emerald"], linewidth=2.5, label="Train LCCP (smooth)")
    ax2.plot(e_iters, e_lccp, "o-", color=PALETTE["white"], ms=8, linewidth=2,
             label="Eval LCCP", zorder=6)

    ax2.annotate(f"{e_lccp[0]:.1f}%",  xy=(e_iters[0], e_lccp[0]),
                 xytext=(e_iters[0] - 0.3, e_lccp[0] - 1.5), fontsize=8.5,
                 color=PALETTE["white"], ha="right")
    ax2.annotate(f"{e_lccp[-1]:.1f}%", xy=(e_iters[-1], e_lccp[-1]),
                 xytext=(e_iters[-1] + 0.3, e_lccp[-1] + 0.5), fontsize=8.5,
                 color=PALETTE["white"])

    # show LCCP delta
    delta = e_lccp[-1] - e_lccp[0]
    ax2.text(0.97, 0.06,
             f"Eval LCCP  Ξ” = +{delta:.2f}pp\n(iter {e_iters[0]} β†’ {e_iters[-1]})",
             transform=ax2.transAxes, ha="right", va="bottom",
             fontsize=8.5, color=PALETTE["emerald"],
             bbox=dict(facecolor=PALETTE["bg2"], edgecolor=PALETTE["emerald"],
                       linewidth=0.8, pad=5))

    ax2.set_title("LCCP  β€”  Did the chain of reasoning stay correct until the first error?",
                  fontsize=9.5, color=PALETTE["slate"], pad=5)
    ax2.set_xlabel("Training Iteration")
    ax2.set_ylabel("LCCP (%)")
    ax2.set_ylim(55, 100)
    ax2.set_xticks(range(1, max(iters) + 1, 3))
    ax2.yaxis.set_major_formatter(matplotlib.ticker.FormatStrFormatter("%.0f%%"))
    ax2.legend(handles=ax2.get_legend_handles_labels()[0] + phase_legend_patches(phases),
               framealpha=0.8, ncol=1, loc="lower right")

    fig.tight_layout()
    save(fig, "plot5_reasoning_quality.png", out)


# ══════════════════════════════════════════════════════════════════════════════
# Main
# ══════════════════════════════════════════════════════════════════════════════

def parse_args():
    p = argparse.ArgumentParser(description="Generate AxiomForgeAI training plots")
    p.add_argument("--metrics", default=DEFAULT_METRICS,
                   help=f"Path to metrics.csv  (default: {DEFAULT_METRICS})")
    p.add_argument("--out", default="images",
                   help="Output directory for PNGs  (default: images/)")
    return p.parse_args()


def main():
    args = parse_args()
    out  = Path(args.out)

    print(f"Loading metrics from  : {args.metrics}")
    print(f"Saving plots to       : {out}/")
    print()

    rows = load_csv(args.metrics)
    print(f"Loaded {len(rows)} iterations.\n")

    print("Generating plots …")
    plot_eval_quality(rows, out)
    plot_training_journey(rows, out)
    plot_selfplay_success(rows, out)
    plot_reward_confidence(rows, out)
    plot_reasoning_quality(rows, out)

    print(f"\nβœ…  All 5 plots saved to {out}/")
    print("\nFiles:")
    for p in sorted(out.glob("plot*.png")):
        print(f"  {p}  ({p.stat().st_size // 1024} KB)")


if __name__ == "__main__":
    main()