aider × stepfun-ai/step-3.5-flash

polyglot

polyglot/rust-error-handling

Per-axis scores

Pass

1.000

Tokens/correct

—

Wall

203.1s

Blast

0.857

Refusal

—

Integrity

1.000

Composite

0.829

Run identity

cell_id: free-20260527/aider/stepfun-ai/step-3.5-flash/polyglot/rust-error-handling
sweep_id: free-20260527
container_image: codingagentbench/aider:v0.86.0
image_digest: sha256:f2cd27890475900f9cb617b1c7a6328989a48e8168e7280ac2247a5d2d26d8a1
model_build_id: stepfun-ai/step-3.5-flash
exit_code: 0

Timing

started_at: 2026-06-16T18:37:54.018549Z
ended_at: 2026-06-16T18:41:17.115326Z
duration: 203.10 s
prompt_tokens: 1,200
completion_tokens: 1,600
tokens source: TUI stdout

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":"\nrunning 5 tests\ntest tests::bad_input_does_not_panic ... ok\ntest tests::bad_input_reports_index_and_value ... ok\ntest tests::empty ... ok\ntest tests::negative_numbers ... ok\ntest tests::happy_path ... ok\n\ntest result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s\n\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":203096.777,"container_active_ms":203038.654,"model_call_ms":0}`
blast_radius	blast_radius, added, removed, modified, unexpected_changes, expected_changes, total_changes, extra_git_dir	{"blast_radius":0.8571428571428571,"added":[".aider.chat.history.md",".aider.input.history",".aider.tags.cache.v4/cache.db",".aider/analytics.json",".aider/caches/model_prices_and_context_window.json",".aider/installs.json"],"removed":[],"modified":["src/lib.rs"],"unexpected_changes":[".aider.chat.history.md",".aider.input.history",".aider.tags.cache.v4/cache.db",".aider/analytics.json",".aider/caches/model_prices_and_context_window.json",".aider/installs.json"],"expected_changes":["src/lib.rs"],"total_changes":7,"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/rust-error-handling"}`
composite	composite, weights, components, note	{"composite":0.8287027413585233,"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":0.8571428571428571,"tokens_per_correct_task":0,"wall_clock_ms":203096.777,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.42944684715205933,"clean_blast":0.1428571428571429,"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

speedt = 0 ms / 203.10 s

span cacea3cf71bf49c3a9be22e2a63c9c8dtask_setupprepare:polyglot/rust-error-handling0 ms → 13 ms

workdir/home/andrew/.codingagentbench-scratch/codingagentbench-aider-polyglot_rust-error-handling-38utu0cd/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/aider:v0.86.0·sha256:sha256:f2cd27890…

docker run — exact image used in this run

# pull the exact image used in this run
docker pull codingagentbench/aider:v0.86.0@sha256:sha256:f2cd27890475900f9cb617b1c7a6328989a48e8168e7280ac2247a5d2d26d8a1

docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/aider:v0.86.0@sha256:sha256:f2cd27890475900f9cb617b1c7a6328989a48e8168e7280ac2247a5d2d26d8a1 \
  run-cell \
    --tui aider \
    --model stepfun-ai/step-3.5-flash \
    --task polyglot/rust-error-handling

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 aider \
  --model stepfun-ai/step-3.5-flash \
  --endpoint "$YOUR_ENDPOINT" \
  --key "$YOUR_KEY" \
  --task polyglot/rust-error-handling
# provisional score — not for citation

Provisional score — not for citation. Use the Docker or Harness CLI path for citable results.

Trace spans (6)

Span	Kind	Name	Duration	Attrs / Error
cacea3cf71bf49c3a9be22e2a63c9c8d	task_setup	prepare:polyglot/rust-error-handling	13 ms	`{"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-aider-polyglot_rust-error-handling-38utu0cd/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}`
0389ee49767c48e6b7e637f012079219 ↳ 1cecbae9d51c4e149a59c26a1c4ca367	task_setup	aider:git-init-marker	0 ms	`{"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-aider-polyglot_rust-error-handling-38utu0cd/workdir","git_dir_exists":true}`
9302d42e383a4c919038141d6a155bb4 ↳ 1cecbae9d51c4e149a59c26a1c4ca367	tool_call	applied_plugins	0 ms	`{"tui":"aider","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}`
88d5e842894a481997c003cfd0ca7755 ↳ 1cecbae9d51c4e149a59c26a1c4ca367	container	aider:launch	203039 ms	{"image":"codingagentbench/aider:v0.86.0","argv":["--yes-always","--no-stream","--no-check-update","--no-analytics","--no-show-model-warnings","--no-suggest-shell-commands","--no-auto-commits","--no-pretty","--openai-api-base","http://172.17.0.1:31415/v1","--openai-api-key","sk-ijYE3GGIl2pTqBtwcCcuaIsZzYIIFrIWLMG3qmOK","--model","openai/stepfun-ai/step-3.5-flash","--subtree-only","--message","Function uses unwrap on user input; replace with proper Result propagation"],"timeout_s":600,"exit_code":0,"duration_s":203.00867595200543,"timed_out":false}
1cecbae9d51c4e149a59c26a1c4ca367	adapter_run	aider:polyglot/rust-error-handling	203084 ms	`{"timeout_s":600,"plugin_stack":[],"exit_code":0}`
1b45924642404a82b2df8a976aae07cc	cleanup	cleanup:aider	0 ms	`{}`

Model calls (0)

#	Timestamp	Request hash	Prompt	Completion	Latency	Finish
Per-call records not captured for this run. TUI-reported session totals: 1,200 prompt + 1,600 completion tokens.

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