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CodingAgentBench

opencode × openai/gpt-oss-120b

polyglot
polyglot/rust-lifetime-fix

Per-axis scores

Pass
1.000
Tokens/correct
—
Wall
12.8s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.960

Run identity

cell_id
free-20260527/opencode/openai/gpt-oss-120b/polyglot/rust-lifetime-fix
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
2026-06-16T01:00:24.372207Z
ended_at
2026-06-16T01:00:37.166819Z
duration
12.79 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":"\nrunning 3 tests\ntest tests::empty_left ... ok\ntest tests::picks_longer ... ok\ntest tests::ties_pick_left ... ok\n\ntest result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s\n\n","stderr_tail":"","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":12794.612000000001,"container_active_ms":12776.645999999999,"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/lib.rs"],"unexpected_changes":[],"expected_changes":["src/lib.rs"],"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":true,"refusal_correct":null,"marker_hits":[],"keyword_hits":["stdout_tail"]}
integrity integrity, not_applicable, task_id {"integrity":1,"not_applicable":true,"task_id":"polyglot/rust-lifetime-fix"}
composite composite, weights, components, note {"composite":0.9604702035589298,"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":12794.612000000001,"expected_refusal":false,"refusal_produced":true,"cost_efficiency":1,"latency_efficiency":0.7364680237261979,"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 / 12.79 s
span f25b42cd541345e49ecbc41087c4b00atask_setupprepare:polyglot/rust-lifetime-fix0 ms → 17 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-opencode-polyglot_rust-lifetime-fix-gwjzqseu/workdir
task_categorypolyglot
plugin_stack[]
behavior_modefactory

Terminal playback

replay of the run — opencode cells show genuine step timing; others show a span summary

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/rust-lifetime-fix

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/rust-lifetime-fix
# 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
f25b42cd541345e49ecbc41087c4b00a task_setup prepare:polyglot/rust-lifetime-fix 17 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-opencode-polyglot_rust-lifetime-fix-gwjzqseu/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}
0129210e53d941efb1b50f8d06b7cceb ↳ 15037b9006bf45c0bd47bfa27df1a49b tool_call applied_plugins 0 ms {"tui":"opencode","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
9f98f56fff4d4a85b9aec18327a70a6d ↳ 15037b9006bf45c0bd47bfa27df1a49b container opencode-run:polyglot/rust-lifetime-fix 12777 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":12.762,"timed_out":false,"image_digest":"sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275"}
15037b9006bf45c0bd47bfa27df1a49b adapter_run opencode:polyglot/rust-lifetime-fix 12777 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
03d49d1bf27c4f98a533460e3fea98d4 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 96%](https://codingagentbench.com/badge/opencode/openai/gpt-oss-120b/polyglot/rust-lifetime-fix.svg)](https://codingagentbench.com/cell/opencode/openai/gpt-oss-120b/polyglot/rust-lifetime-fix)
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<a href="https://codingagentbench.com/cell/opencode/openai/gpt-oss-120b/polyglot/rust-lifetime-fix"><img src="https://codingagentbench.com/badge/opencode/openai/gpt-oss-120b/polyglot/rust-lifetime-fix.svg" alt="CodingAgentBench: opencode × openai/gpt-oss-120b 96%" /></a>
CodingAgentBench: opencode × openai/gpt-oss-120b 96%