ProgramBench task detail

lz4__lz4.1519f46

Task-level results for this Codex /goal scaffold. ProgramBench baseline context is cached from the official task page; Codex scored tests are after active-branch and ignored-test filtering.

1496generated behavioral tests
87.9%official best score
82.0%Codex best score
3Codex result rows

Codex Results by Model

#ModelRunAgentModeScoreEvalTestsEst. costCallsWallEvidence
1 GPT 5.5 (xhigh) 20260517T094700Z Codex /goal Mini-SWE-compatible no internet 82.0% ok 1227/1496 $1.95 34 0.16h manifest · eval json · eval summary · usage audit
2 GPT 5.5 (xhigh) 20260518T232006Z Codex /goal Paper prompt + /goal no internet 72.3% ok 1081/1496 n/a 33 0.15h not exported
3 GPT 5.5 (xhigh) 20260519T215046Z Codex /goal Paper prompt + Goal contract no internet 69.4% ok 1038/1496 n/a 70 0.21h 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

82.0% from 1227/1496 ProgramBench-scored tests. Raw public eval statuses: failure: 344, passed: 1483, skipped: 2.

Agent trace summary unavailable.

Likely miss class: behavioral mismatch.

  • 84cbe4a71abe tests.test_basic_invocation.test_help_short (failure)
  • 84cbe4a71abe tests.test_basic_invocation.test_help_capital_h (failure)
  • 84cbe4a71abe tests.test_benchmark.test_benchmark_default_level (failure)
  • 84cbe4a71abe tests.test_benchmark.test_benchmark_range (failure)
  • 84cbe4a71abe tests.test_error_handling.test_fast_negative_fails (failure)
  • 84cbe4a71abe tests.test_error_handling.test_fast_zero_fails (failure)

manifest · eval json · eval summary · usage audit

GPT 5.5 (xhigh) · 20260518T232006Z

Public eval evidence has not been exported for this row yet.

GPT 5.5 (xhigh) · 20260519T215046Z

Public eval evidence has not been exported for this row yet.

Official ProgramBench Results by Model

#ModelProviderScoreCostCalls
1 GPT 5.5 (xhigh) OpenAI 87.9% $8.10 84
2 GPT 5.5 (high) OpenAI 82.7% $2.92 42
3 Claude Sonnet 4.6 Anthropic 82.7% $25.44 501
4 Claude Opus 4.7 (xhigh) Anthropic 80.6% $4.56 100
5 Claude Opus 4.7 Anthropic 80.0% $5.56 155
6 Claude Opus 4.6 Anthropic 78.7% $9.86 216
7 GPT 5.5 OpenAI 74.5% $0.88 15
8 GPT 5.4 OpenAI 46.6% $0.24 10
9 Gemini 3.1 Pro Google 36.4% $0.84 57
10 Claude Haiku 4.5 Anthropic 22.1% $0.84 97
11 GPT 5 mini OpenAI 14.4% $0.01 9
12 GPT 5.4 mini OpenAI 9.6% $0.04 10
13 Gemini 3 Flash Google 5.2% $0.20 46