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CodingAgentBench

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

mutations
mutations/go-binary-search-offbyone

Per-axis scores

Pass
1.000
Tokens/correct
—
Wall
253.4s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.912

Run identity

cell_id
newmodels-20260620/opencode/nvidia/nemotron-3-ultra-550b-a55b/mutations/go-binary-search-offbyone
sweep_id
newmodels-20260620
container_image
codingagentbench/opencode:v1.15.10
image_digest
sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275
model_build_id
nvidia/nemotron-3-ultra-550b-a55b
exit_code
0

Timing

started_at
2026-06-20T21:32:14.879848Z
ended_at
2026-06-20T21:36:28.259682Z
duration
253.38 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 \tcodingagentbench/gobinarysearch\t0.004s\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":253379.834,"container_active_ms":253378.638,"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":["search.go"],"unexpected_changes":[],"expected_changes":["search.go"],"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":"mutations/go-binary-search-offbyone"}
composite composite, weights, components, note {"composite":0.9119685545875236,"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":253379.834,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.4131236972501564,"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 / 253.38 s
span 0cee7475720b45fc833dce829b0170d0task_setupprepare:mutations/go-binary-search-offbyone0 ms → 1 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-opencode-mutations_go-binary-search-offbyone-bt4s_x6f/workdir
task_categorymutations
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 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.

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: nvidia/nemotron-3-ultra-550b-a55b
Zero-install preview — npx CLI (provisional, not for citation)
npx @codingagentbench/cli check
npx @codingagentbench/cli check \
  --tui opencode \
  --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
0cee7475720b45fc833dce829b0170d0 task_setup prepare:mutations/go-binary-search-offbyone 1 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-opencode-mutations_go-binary-search-offbyone-bt4s_x6f/workdir","task_category":"mutations","plugin_stack":[],"behavior_mode":"factory"}
e5329627a8a1420da38f4c065a5def1c ↳ 936376a35d92433dbeaa67bfd627124d tool_call applied_plugins 0 ms {"tui":"opencode","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
ed8f3cd693034b08ac667485fff6f36a ↳ 936376a35d92433dbeaa67bfd627124d container opencode-run:mutations/go-binary-search-offbyone 253379 ms {"image":"codingagentbench/opencode:v1.15.10","model":"nvidia/nemotron-3-ultra-550b-a55b","base_url":"http://172.17.0.1:31415/v1","exit_code":0,"duration_s":253.354,"timed_out":false,"image_digest":"sha256:e56bdb69fb83ea2f8c81c06257f190fd4b5e91077e83d5536f722ff1b9c70275"}
936376a35d92433dbeaa67bfd627124d adapter_run opencode:mutations/go-binary-search-offbyone 253379 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
9c8668aac852482686a3ccad7bb501ce 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 × nvidia/nemotron-3-ultra-550b-a55b 91%