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CodingAgentBench

codex × nvidia/nemotron-3-ultra-550b-a55b

mutations
mutations/go-binary-search-offbyone
Provider rate limit (HTTP 429) — the agent exhausted its retries before doing any work. Infra, not capability: other TUIs drive this same model fine.
All scores are reported as recorded. A failed run's zero is an honest measurement.

Per-axis scores

Pass
0.000
Tokens/correct
—
Wall
27.6s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.545

Run identity

cell_id
newmodels-20260620/codex/nvidia/nemotron-3-ultra-550b-a55b/mutations/go-binary-search-offbyone
sweep_id
newmodels-20260620
container_image
codingagentbench/codex:v0.140.0
image_digest
sha256:52116224fbc698acc448343890c4542efcc101a950ef8c8de1eca3e051f228bc
model_build_id
nvidia/nemotron-3-ultra-550b-a55b
exit_code
1

Timing

started_at
2026-06-21T00:23:26.325030Z
ended_at
2026-06-21T00:23:53.878036Z
duration
27.55 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":"--- FAIL: TestSearch_RightmostElement (0.00s)\n search_test.go:19: got -1 want 4\n--- FAIL: TestSearch_Single (0.00s)\n search_test.go:31: got -1 want 0\nFAIL\nFAIL\tcodingagentbench/gobinarysearch\t0.003s\nFAIL\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":27553.006,"container_active_ms":27525.684999999998,"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":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/go-binary-search-offbyone"}
composite composite, weights, components, note {"composite":0.545259584189116,"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":27553.006,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.635063894594107,"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 / 27.55 s
span f3a3e71cf9ff4dee8e10bc0b8d95f642task_setupprepare:mutations/go-binary-search-offbyone0 ms → 26 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-codex-mutations_go-binary-search-offbyone-fwl4is4l/workdir
task_categorymutations
plugin_stack[]
behavior_modefactory

Watch it get throttled

the agent exhausted its retries against the provider's rate limit (HTTP 429) before doing any work
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/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 nvidia/nemotron-3-ultra-550b-a55b \
    --task mutations/go-binary-search-offbyone

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: nvidia/nemotron-3-ultra-550b-a55b
Zero-install preview — npx CLI (provisional, not for citation)
npx @codingagentbench/cli check
npx @codingagentbench/cli check \
  --tui codex \
  --model nvidia/nemotron-3-ultra-550b-a55b \
  --endpoint "$YOUR_ENDPOINT" \
  --key "$YOUR_KEY" \
  --task mutations/go-binary-search-offbyone
# 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
f3a3e71cf9ff4dee8e10bc0b8d95f642 task_setup prepare:mutations/go-binary-search-offbyone 26 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-codex-mutations_go-binary-search-offbyone-fwl4is4l/workdir","task_category":"mutations","plugin_stack":[],"behavior_mode":"factory"}
e3977a902b0a4f53816528016ed50c0e ↳ f5a03642a0634f9b8446e03fd98ee3c5 tool_call applied_plugins 0 ms {"tui":"codex","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
614bb431bf5941179cac8e83f22223f9 ↳ f5a03642a0634f9b8446e03fd98ee3c5 container codex:launch 27525 ms {"image":"codingagentbench/codex:v0.140.0","argv":["exec","--dangerously-bypass-approvals-and-sandbox","--skip-git-repo-check","--ephemeral","--ignore-user-config","-m","nvidia/nemotron-3-ultra-550b-a55b","-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","Off-by-one in iterative binary search: `<=` flipped to `<` skips rightmost elements"],"timeout_s":600,"exit_code":1,"duration_s":27.492031158995815,"timed_out":false}
f5a03642a0634f9b8446e03fd98ee3c5 adapter_run codex:mutations/go-binary-search-offbyone 27526 ms {"timeout_s":600,"plugin_stack":[],"exit_code":1}
da073119ef9348e3a603d5bfc7cbd540 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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