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CodingAgentBench

codex × openai/gpt-oss-120b

mutations
mutations/java-null-deref

Per-axis scores

Pass
1.000
Tokens/correct
—
Wall
46.1s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.936

Run identity

cell_id
expansion-20260616/codex/openai/gpt-oss-120b/mutations/java-null-deref
sweep_id
expansion-20260616
container_image
codingagentbench/codex:v0.140.0
image_digest
sha256:52116224fbc698acc448343890c4542efcc101a950ef8c8de1eca3e051f228bc
model_build_id
openai/gpt-oss-120b
exit_code
0

Timing

started_at
2026-06-17T00:39:54.615513Z
ended_at
2026-06-17T00:40:40.716677Z
duration
46.10 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":"ok values win over defaults\nok fallback to defaults\nok missing returns null\nok nullDefaultsReturnsNull\nok values still work with null defaults\nok null values, key in defaults\nok null values, missing key\nall tests passed\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":46101.164,"container_active_ms":46086.445,"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/Config.java"],"unexpected_changes":[],"expected_changes":["src/Config.java"],"total_changes":1,"extra_git_dir":true}
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":"mutations/java-null-deref"}
composite composite, weights, components, note {"composite":0.9357646725970241,"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":46101.164,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.5717644839801601,"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 / 46.10 s
span 94f8461a00184ce883154216b77199c7task_setupprepare:mutations/java-null-deref0 ms → 14 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-codex-mutations_java-null-deref-esdsk2xx/workdir
task_categorymutations
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/codex:v0.140.0·sha256:sha256:52116224f…
docker run — exact image used in this run
# pull the exact image used in this run
docker pull codingagentbench/codex:v0.140.0@sha256:sha256:52116224fbc698acc448343890c4542efcc101a950ef8c8de1eca3e051f228bc

docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/codex:v0.140.0@sha256:sha256:52116224fbc698acc448343890c4542efcc101a950ef8c8de1eca3e051f228bc \
  run-cell \
    --tui codex \
    --model openai/gpt-oss-120b \
    --task mutations/java-null-deref

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 codex \
  --model openai/gpt-oss-120b \
  --endpoint "$YOUR_ENDPOINT" \
  --key "$YOUR_KEY" \
  --task mutations/java-null-deref
# 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
94f8461a00184ce883154216b77199c7 task_setup prepare:mutations/java-null-deref 14 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-codex-mutations_java-null-deref-esdsk2xx/workdir","task_category":"mutations","plugin_stack":[],"behavior_mode":"factory"}
ea360e2147bb4f06ba8c17fd04878b2d ↳ 752ccdc04da64316bf6f94dd8645112b tool_call applied_plugins 0 ms {"tui":"codex","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
3aca2234d6ad40939dae7c3d56901054 ↳ 752ccdc04da64316bf6f94dd8645112b container codex:launch 46086 ms {"image":"codingagentbench/codex:v0.140.0","argv":["exec","--dangerously-bypass-approvals-and-sandbox","--skip-git-repo-check","--ephemeral","--ignore-user-config","-m","openai/gpt-oss-120b","-c","model_providers.nim={ name = 'nim', base_url = 'http://172.17.0.1:31415/v1', wire_api = 'responses', env_key = 'OPENAI_API_KEY' }","-c","model_provider=\"nim\"","--disable","multi_agent","--disable","browser_use","--disable","browser_use_external","--disable","computer_use","--disable","apps","Critical null guard deleted before defaults.get() — NPE on caller-supplied null defaults"],"timeout_s":600,"exit_code":0,"duration_s":46.071688630996505,"timed_out":false}
752ccdc04da64316bf6f94dd8645112b adapter_run codex:mutations/java-null-deref 46087 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
3121f68f5932463ebeed6e5394984f28 cleanup cleanup:codex 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: codex × openai/gpt-oss-120b 94%