Codex Results by Model
| # | Model | Run | Agent | Mode | Score | Eval | Tests | Est. cost | Calls | Wall | Evidence |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | GPT 5.5 (xhigh) | 20260517T094700Z |
Codex /goal | Mini-SWE-compatible no internet | 50.3% | ok | 605/1202 | $5.04 | 65 | 0.27h | manifest · eval json · eval summary · usage audit |
| 2 | GPT 5.5 (xhigh) | 20260518T232006Z |
Codex /goal | Paper prompt + /goal no internet | 49.3% | ok | 592/1202 | $3.82 | 44 | 0.19h | manifest · eval json · eval summary · agent summary · usage audit |
| 3 | GPT 5.5 (xhigh) | 20260519T215046Z |
Codex /goal | Paper prompt + Goal contract no internet | 42.0% | ok | 505/1202 | $3.22 | 38 | 0.19h | not exported |
Why Scores Differ
Official ProgramBench rows are the public mini-SWE-agent submissions. GoalBench rows are separate Codex /goal submissions. Same model label does not mean the same agent, prompt, tool loop, or generated implementation. A GoalBench row is resolved only when the ProgramBench-scored pass rate is exactly 100%.
GPT 5.5 (xhigh) · 20260517T094700Z
50.3% from 605/1202 ProgramBench-scored tests. Raw public eval statuses: failure: 598, passed: 636, skipped: 26.
Agent trace summary unavailable.
Likely miss class: behavioral mismatch, exact version/output mismatch.
86f3178a4b28eval.tests.test_effects.test_gain_reduces_volume (failure)86f3178a4b28eval.tests.test_effects.test_highpass_filter (failure)86f3178a4b28eval.tests.test_effects.test_dcshift_effect (failure)86f3178a4b28eval.tests.test_effects.test_echos_effect (failure)86f3178a4b28eval.tests.test_error_handling.test_invalid_format_name (failure)86f3178a4b28eval.tests.test_error_handling.test_missing_effect_argument (failure)
GPT 5.5 (xhigh) · 20260518T232006Z
49.3% from 592/1202 ProgramBench-scored tests. Raw public eval statuses: failure: 611, passed: 623, skipped: 26.
Agent trace: 87 shell command(s), 61 executable-observation command(s), 5 build command(s), 2 blocked attempt(s). Raw Codex logs are not published.
Likely miss class: behavioral mismatch, exact version/output mismatch.
86f3178a4b28eval.tests.test_audio_formats.test_add_comment_aiff (failure)86f3178a4b28eval.tests.test_audio_formats.test_endian_big (failure)86f3178a4b28eval.tests.test_audio_formats.test_au_ulaw (failure)86f3178a4b28eval.tests.test_effects.test_highpass_filter (failure)86f3178a4b28eval.tests.test_effects.test_echos_effect (failure)86f3178a4b28eval.tests.test_effects.test_dcshift_effect (failure)
manifest · eval json · eval summary · agent summary · usage audit
GPT 5.5 (xhigh) · 20260519T215046Z
Public eval evidence has not been exported for this row yet.
Official ProgramBench Results by Model
| # | Model | Provider | Score | Cost | Calls |
|---|---|---|---|---|---|
| 1 | GPT 5.5 (high) | OpenAI | 38.9% | $4.14 | 39 |
| 2 | Claude Opus 4.6 | Anthropic | 37.9% | $10.13 | 233 |
| 3 | GPT 5.5 | OpenAI | 29.7% | $1.30 | 16 |
| 4 | Claude Sonnet 4.6 | Anthropic | 29.2% | $13.13 | 287 |
| 5 | GPT 5.4 | OpenAI | 13.3% | $0.23 | 7 |
| 6 | Gemini 3 Flash | 8.6% | $0.29 | 66 | |
| 7 | Claude Opus 4.7 (xhigh) | Anthropic | 8.1% | $7.08 | 125 |
| 8 | Gemini 3.1 Pro | 7.2% | $1.15 | 53 | |
| 9 | Claude Opus 4.7 | Anthropic | 3.9% | $1.25 | 49 |
| 10 | GPT 5 mini | OpenAI | 3.6% | $0.03 | 10 |
| 11 | Claude Haiku 4.5 | Anthropic | 3.1% | $0.86 | 125 |
| 12 | GPT 5.4 mini | OpenAI | 1.3% | $0.04 | 16 |
| 13 | GPT 5.5 (xhigh) | OpenAI | n/a | $79.42 | 1,000 |