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CodingAgentBench

copilot × stepfun-ai/step-3.5-flash

polyglot
polyglot/go-slice-dedup

Per-axis scores

Pass
1.000
Tokens/correct
—
Wall
56.9s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.932

Run identity

cell_id
expansion-20260616/copilot/stepfun-ai/step-3.5-flash/polyglot/go-slice-dedup
sweep_id
expansion-20260616
container_image
codingagentbench/copilot:v1.0.63
image_digest
sha256:6ad0221187dc5c6de50c8aeec50b0eb8eab269c1a681c79efaaa068741a20607
model_build_id
stepfun-ai/step-3.5-flash
exit_code
0

Timing

started_at
2026-06-17T02:03:39.245179Z
ended_at
2026-06-17T02:04:36.130743Z
duration
56.88 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/goslicededup\t0.002s\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":56885.564000000006,"container_active_ms":56873.209,"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":["dedup.go"],"unexpected_changes":[],"expected_changes":["dedup.go"],"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":"polyglot/go-slice-dedup"}
composite composite, weights, components, note {"composite":0.93217681367617,"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":56885.564000000006,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.5478454245077992,"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 / 56.88 s
span da082ba4856d481399af27c5888cef3ctask_setupprepare:polyglot/go-slice-dedup0 ms → 12 ms
workdir/home/andrew/.codingagentbench-scratch/codingagentbench-copilot-polyglot_go-slice-dedup-c095gl2w/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/copilot:v1.0.63·sha256:sha256:6ad022118…
docker run — exact image used in this run
# pull the exact image used in this run
docker pull codingagentbench/copilot:v1.0.63@sha256:sha256:6ad0221187dc5c6de50c8aeec50b0eb8eab269c1a681c79efaaa068741a20607

docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/copilot:v1.0.63@sha256:sha256:6ad0221187dc5c6de50c8aeec50b0eb8eab269c1a681c79efaaa068741a20607 \
  run-cell \
    --tui copilot \
    --model stepfun-ai/step-3.5-flash \
    --task polyglot/go-slice-dedup

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: stepfun-ai/step-3.5-flash
Zero-install preview — npx CLI (provisional, not for citation)
npx @codingagentbench/cli check
npx @codingagentbench/cli check \
  --tui copilot \
  --model stepfun-ai/step-3.5-flash \
  --endpoint "$YOUR_ENDPOINT" \
  --key "$YOUR_KEY" \
  --task polyglot/go-slice-dedup
# 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
da082ba4856d481399af27c5888cef3c task_setup prepare:polyglot/go-slice-dedup 12 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-copilot-polyglot_go-slice-dedup-c095gl2w/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}
166c4ade728349ce95367d68438bd073 ↳ 2c8f7aadf332412e994260f22449eb26 tool_call applied_plugins 0 ms {"tui":"copilot","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
5c23b25f857a406080651e1c2f87cf86 ↳ 2c8f7aadf332412e994260f22449eb26 container copilot:launch 56873 ms {"image":"codingagentbench/copilot:v1.0.63","argv":["-p","Dedup a slice preserving first-seen order; current impl mutates input and produces wrong order","--allow-all"],"timeout_s":600,"exit_code":0,"duration_s":56.85800035300781,"timed_out":false}
2c8f7aadf332412e994260f22449eb26 adapter_run copilot:polyglot/go-slice-dedup 56873 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
432bad6544ad491d94304080f67e76e5 cleanup cleanup:copilot 0 ms {}

Model calls (0)

# Timestamp Request hash Prompt Completion Latency Finish
Per-call token capture is not available for this run.

Other CLIs on this task

Other models with this CLI

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Embed this result
README / Markdown
[![CodingAgentBench: copilot × stepfun-ai/step-3.5-flash 93%](https://codingagentbench.com/badge/copilot/stepfun-ai/step-3.5-flash/polyglot/go-slice-dedup.svg)](https://codingagentbench.com/cell/copilot/stepfun-ai/step-3.5-flash/polyglot/go-slice-dedup)
HTML / iframe
<a href="https://codingagentbench.com/cell/copilot/stepfun-ai/step-3.5-flash/polyglot/go-slice-dedup"><img src="https://codingagentbench.com/badge/copilot/stepfun-ai/step-3.5-flash/polyglot/go-slice-dedup.svg" alt="CodingAgentBench: copilot × stepfun-ai/step-3.5-flash 93%" /></a>
CodingAgentBench: copilot × stepfun-ai/step-3.5-flash 93%