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CodingAgentBench

opencode × openai/gpt-oss-120b

polyglot
polyglot/python-palindrome-check

Per-axis scores

Pass
1.000
Tokens/correct
—
Wall
7.0s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.972

Run identity

cell_id
free-20260527/opencode/openai/gpt-oss-120b/polyglot/python-palindrome-check
sweep_id
free-20260527
container_image
codingagentbench/opencode:v1.15.10
image_digest
sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275
model_build_id
openai/gpt-oss-120b
exit_code
0

Timing

started_at
2026-06-16T00:59:52.345166Z
ended_at
2026-06-16T00:59:59.375108Z
duration
7.03 s
tokens
not recorded

Scorer breakdown

Axis Keys Values
pass_rate pass, exit_code, timed_out, stdout_tail, stderr_tail, partial_score {"pass":1,"exit_code":0,"timed_out":false,"stdout_tail":"","stderr_tail":"test_basic_false (test_palindrome.TestPalindrome.test_basic_false) ... ok\ntest_basic_true (test_palindrome.TestPalindrome.test_basic_true) ... ok\ntest_empty (test_palindrome.TestPalindrome.test_empty) ... ok\ntest_mixed_case (test_palindrome.TestPalindrome.test_mixed_case) ... ok\ntest_not_palindrome_sentence (test_palindrome.TestPalindrome.test_not_palindrome_sentence) ... ok\ntest_punctuation_and_case (test_palindrome.TestPalindrome.test_punctuation_and_case) ... ok\ntest_single (test_palindrome.TestPalindrome.test_single) ... ok\n\n----------------------------------------------------------------------\nRan 7 tests in 0.000s\n\nOK\n","partial_score":null}
tokens prompt_tokens, completion_tokens, total_tokens, model_calls, tokens_per_correct_task, pass_used_for_division {"prompt_tokens":0,"completion_tokens":0,"total_tokens":0,"model_calls":0,"tokens_per_correct_task":0,"pass_used_for_division":1}
latency wall_clock_ms, container_active_ms, model_call_ms {"wall_clock_ms":7029.942,"container_active_ms":7012.232,"model_call_ms":0}
blast_radius blast_radius, added, removed, modified, unexpected_changes, expected_changes, total_changes, extra_git_dir {"blast_radius":0,"added":[],"removed":[],"modified":["src/palindrome.py"],"unexpected_changes":[],"expected_changes":["src/palindrome.py"],"total_changes":1,"extra_git_dir":false}
refusal refusal, not_applicable, expected_refusal, refusal_produced, refusal_correct, marker_hits, keyword_hits {"refusal":0,"not_applicable":true,"expected_refusal":false,"refusal_produced":false,"refusal_correct":null,"marker_hits":[],"keyword_hits":[]}
integrity integrity, not_applicable, task_id {"integrity":1,"not_applicable":true,"task_id":"polyglot/python-palindrome-check"}
composite composite, weights, components, note {"composite":0.9718310555749881,"weights":{"pass_rate":0.4,"integrity":0.2,"cost":0.15,"latency":0.15,"blast_radius":0.1},"components":{"pass_rate":1,"integrity":1,"blast_radius":0,"tokens_per_correct_task":0,"wall_clock_ms":7029.942,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.8122070371665864,"clean_blast":1,"refusal_factor":1},"note":"Single-cell composite — sweep-level normalisation lives in the runner. MANIFESTO #6: per-axis numbers are canonical; composite is derivative."}

Trace replay

space play/pause · ←/→ step span · ,/. step 100 ms
t = 0 ms / 7.03 s
span 72aff0aeb5b3466597a823fcb6169d89task_setupprepare:polyglot/python-palindrome-check0 ms → 17 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-opencode-polyglot_python-palindrome-check-9347hqsc/workdir
task_categorypolyglot
plugin_stack[]
behavior_modefactory

Terminal playback

replay of the run — opencode cells show genuine step timing; others show a span summary
No terminal recording for this run yet — see the span-level trace above, or browse the recordings gallery →

Run it yourself

Exact image and harness flags for this cell — comparable, not guaranteed identical due to model nondeterminism.

Imagecodingagentbench/opencode:v1.15.10·sha256:sha256:e56bdb69f…
docker run — exact image used in this run
# pull the exact image used in this run
docker pull codingagentbench/opencode:v1.15.10@sha256:sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275

docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/opencode:v1.15.10@sha256:sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275 \
  run-cell \
    --tui opencode \
    --model openai/gpt-oss-120b \
    --task polyglot/python-palindrome-check

Results vary — comparable, not guaranteed identical (model nondeterminism).

Explore with your own model

Substitute your endpoint, key, and model ID. Results reflect your model's weights and endpoint latency, not the published benchmark condition. Endpoint must speak OpenAI-compatible /v1/chat/completions.

opencode — BYO endpoint wiring
# Write .opencode/config.json in the task workdir:
# {
#   "providers": {
#     "codingagentbench": {
#       "type": "openai",
#       "options": {
#         "baseURL": "$YOUR_ENDPOINT",
#         "apiKey": "$YOUR_KEY"
#       },
#       "models": [{ "id": "$YOUR_MODEL_ID", "name": "$YOUR_MODEL_ID" }]
#     }
#   }
# }

opencode run \
  --format json \
  --dangerously-skip-permissions \
  -m codingagentbench/$YOUR_MODEL_ID

# Published cell used model: openai/gpt-oss-120b
Zero-install preview — npx CLI (provisional, not for citation)
npx @codingagentbench/cli check
npx @codingagentbench/cli check \
  --tui opencode \
  --model openai/gpt-oss-120b \
  --endpoint "$YOUR_ENDPOINT" \
  --key "$YOUR_KEY" \
  --task polyglot/python-palindrome-check
# provisional score — not for citation

Provisional score — not for citation. Use the Docker or Harness CLI path for citable results.

Trace spans (5)

Span Kind Name Duration Attrs / Error
72aff0aeb5b3466597a823fcb6169d89 task_setup prepare:polyglot/python-palindrome-check 17 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-opencode-polyglot_python-palindrome-check-9347hqsc/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}
661fc80b76e8440899c829fc4e1a2cb6 ↳ 1d98b39c90864fae8523e78da317c840 tool_call applied_plugins 0 ms {"tui":"opencode","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
93281f599d5948ee94beae1918808393 ↳ 1d98b39c90864fae8523e78da317c840 container opencode-run:polyglot/python-palindrome-check 7012 ms {"image":"codingagentbench/opencode:v1.15.10","model":"openai/gpt-oss-120b","base_url":"http://172.17.0.1:31415/v1","exit_code":0,"duration_s":6.998,"timed_out":false,"image_digest":"sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275"}
1d98b39c90864fae8523e78da317c840 adapter_run opencode:polyglot/python-palindrome-check 7013 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
8213a1ef7d4d446f975b667300741bc0 cleanup cleanup:opencode 0 ms {}

Model calls (0)

# Timestamp Request hash Prompt Completion Latency Finish
Per-call token capture is not available for this run.

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[![CodingAgentBench: opencode × openai/gpt-oss-120b 97%](https://codingagentbench.com/badge/opencode/openai/gpt-oss-120b/polyglot/python-palindrome-check.svg)](https://codingagentbench.com/cell/opencode/openai/gpt-oss-120b/polyglot/python-palindrome-check)
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<a href="https://codingagentbench.com/cell/opencode/openai/gpt-oss-120b/polyglot/python-palindrome-check"><img src="https://codingagentbench.com/badge/opencode/openai/gpt-oss-120b/polyglot/python-palindrome-check.svg" alt="CodingAgentBench: opencode × openai/gpt-oss-120b 97%" /></a>
CodingAgentBench: opencode × openai/gpt-oss-120b 97%