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CodingAgentBench

openhands × openai/gpt-oss-120b

polyglot
polyglot/rust-lifetime-fix
Model incompatible with this TUI — they could not handshake.
All scores are reported as recorded. A failed run's zero is an honest measurement.

Per-axis scores

Pass
0.000
Tokens/correct
—
Wall
11.2s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.563

Run identity

cell_id
free-20260527/openhands/openai/gpt-oss-120b/polyglot/rust-lifetime-fix
sweep_id
free-20260527
container_image
codingagentbench/openhands:1.7.0
image_digest
sha256:7fcaf222644a5cb0afffe018f038d270130b5af3b8af366cd960f2d596a4342c
model_build_id
openai/gpt-oss-120b
exit_code
1

Timing

started_at
2026-06-16T02:03:50.469365Z
ended_at
2026-06-16T02:04:01.679814Z
duration
11.21 s
tokens
not recorded

Scorer breakdown

Axis Keys Values
pass_rate pass, exit_code, timed_out, stdout_tail, stderr_tail, partial_score {"pass":0,"exit_code":1,"timed_out":false,"stdout_tail":"error[E0106]: missing lifetime specifier\n --> src/lib.rs:3:37\n |\n3 | pub fn longest(a: &str, b: &str) -> &str {\n | ---- ---- ^ expected named lifetime parameter\n |\n = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `a` or `b`\nhelp: consider introducing a named lifetime parameter\n |\n3 | pub fn longest<'a>(a: &'a str, b: &'a str) -> &'a str {\n | ++++ ++ ++ ++\n\nerror: aborting due to 1 previous error\n\nFor more information about this error, try `rustc --explain E0106`.\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":0}
latency wall_clock_ms, container_active_ms, model_call_ms {"wall_clock_ms":11210.449,"container_active_ms":11209.812,"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":[],"unexpected_changes":[],"expected_changes":[],"total_changes":0,"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/rust-lifetime-fix"}
composite composite, weights, components, note {"composite":0.5630752821919481,"weights":{"pass_rate":0.4,"integrity":0.2,"cost":0.15,"latency":0.15,"blast_radius":0.1},"components":{"pass_rate":0,"integrity":1,"blast_radius":0,"tokens_per_correct_task":0,"wall_clock_ms":11210.449,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.7538352146129881,"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 / 11.21 s
span a6fb18e54aad4e9eb291c7dc0cd448a1adapter_runopenhands:polyglot/rust-lifetime-fix0 ms → 11.21 s
timeout_s600
plugin_stack[]
exit_code1

Watch it fail

the TUI and model could not handshake
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/openhands:1.7.0·sha256:sha256:7fcaf2226…
docker run — exact image used in this run
# pull the exact image used in this run
docker pull codingagentbench/openhands:1.7.0@sha256:sha256:7fcaf222644a5cb0afffe018f038d270130b5af3b8af366cd960f2d596a4342c

docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/openhands:1.7.0@sha256:sha256:7fcaf222644a5cb0afffe018f038d270130b5af3b8af366cd960f2d596a4342c \
  run-cell \
    --tui openhands \
    --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.

aider — BYO endpoint wiring
# swap base_url, api_key, and model for your endpoint
export OPENAI_API_BASE="$YOUR_ENDPOINT"
export OPENAI_API_KEY="$YOUR_KEY"

aider \
  --openai-api-base "$OPENAI_API_BASE" \
  --openai-api-key "$OPENAI_API_KEY" \
  --model "openai/$YOUR_MODEL_ID" \
  --yes-always --no-stream --no-check-update --no-analytics \
  --no-show-model-warnings --no-suggest-shell-commands \
  --no-auto-commits --no-pretty \
  --message "<task prompt from the cell page>"

# 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 openhands \
  --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
59ad02e0aee142eca58ef5b150a21dc2 task_setup prepare:polyglot/rust-lifetime-fix 0 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-openhands-polyglot_rust-lifetime-fix-9nyjwoy_/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}
33c7150bf28c47ea8422651eee423e79 ↳ a6fb18e54aad4e9eb291c7dc0cd448a1 tool_call applied_plugins 0 ms {"tui":"openhands","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
1aeef5a0ce7f4ca98766241aeff1bb42 ↳ a6fb18e54aad4e9eb291c7dc0cd448a1 container openhands:run 11210 ms {"image":"codingagentbench/openhands:1.7.0","command":["/app/.venv/bin/python","/opt/openhands_run.py","-t","Missing explicit lifetime annotation prevents a longest-string helper from compiling","--workspace","/workspace"],"deviation":"root+docker.sock; see module docstring","exit_code":1,"timed_out":false,"docker_sock_mounted":true,"read_only":false}
a6fb18e54aad4e9eb291c7dc0cd448a1 adapter_run openhands:polyglot/rust-lifetime-fix 11210 ms {"timeout_s":600,"plugin_stack":[],"exit_code":1}
45b029b35805451ca6bbcc0bb9f4f092 cleanup cleanup:openhands 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: openhands × openai/gpt-oss-120b 56%](https://codingagentbench.com/badge/openhands/openai/gpt-oss-120b/polyglot/rust-lifetime-fix.svg)](https://codingagentbench.com/cell/openhands/openai/gpt-oss-120b/polyglot/rust-lifetime-fix)
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CodingAgentBench: openhands × openai/gpt-oss-120b 56%