Skip to main content
CodingAgentBench

aider × stepfun-ai/step-3.5-flash

polyglot
polyglot/rust-owner-borrow-fix

Per-axis scores

Pass
1.000
Tokens/correct
—
Wall
129.5s
Blast
0.857
Refusal
—
Integrity
1.000
Composite
0.834

Run identity

cell_id
free-20260527/aider/stepfun-ai/step-3.5-flash/polyglot/rust-owner-borrow-fix#run2
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
2026-05-29T14:19:43.914355Z
ended_at
2026-05-29T14:21:53.386157Z
duration
129.47 s
prompt_tokens
1,300
completion_tokens
7,000
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 3 tests\ntest tests::basic ... ok\ntest tests::empty_items ... ok\ntest tests::single_item ... ok\n\ntest result: ok. 3 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":129471.802,"container_active_ms":128857.161,"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":true,"refusal_correct":null,"marker_hits":[],"keyword_hits":["stdout_tail"]}
integrity integrity, not_applicable, task_id {"integrity":1,"not_applicable":true,"task_id":"polyglot/rust-owner-borrow-fix"}
composite composite, weights, components, note {"composite":0.8342325319263781,"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":129471.802,"expected_refusal":false,"refusal_produced":true,"cost_efficiency":1,"latency_efficiency":0.46631211760442504,"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
t = 0 ms / 129.47 s
span 488658e8578d48f4861bd0095e6f7610task_setupprepare:polyglot/rust-owner-borrow-fix0 ms → 12 ms
workdir/tmp/codingagentbench-scratch/codingagentbench-aider-polyglot_rust-owner-borrow-fix-jrkiy23_/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-owner-borrow-fix

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-owner-borrow-fix
# 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
488658e8578d48f4861bd0095e6f7610 task_setup prepare:polyglot/rust-owner-borrow-fix 12 ms {"workdir":"/tmp/codingagentbench-scratch/codingagentbench-aider-polyglot_rust-owner-borrow-fix-jrkiy23_/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}
63ce08f069f54891ab89d634173b44bc ↳ 8bb704e66abc4437a3d3b09d098aa02f task_setup aider:git-init-marker 0 ms {"workdir":"/tmp/codingagentbench-scratch/codingagentbench-aider-polyglot_rust-owner-borrow-fix-jrkiy23_/workdir","git_dir_exists":true}
bcede276e554491ebd42c9c0fd8760ab ↳ 8bb704e66abc4437a3d3b09d098aa02f tool_call applied_plugins 0 ms {"tui":"aider","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
5febd4d84286427cb6732607e267d57d ↳ 8bb704e66abc4437a3d3b09d098aa02f container aider:launch 128858 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","Move-after-use compile error in a string concat helper; convert to borrow + clone where needed"],"timeout_s":600,"exit_code":0,"duration_s":128.8406516670002,"timed_out":false}
8bb704e66abc4437a3d3b09d098aa02f adapter_run aider:polyglot/rust-owner-borrow-fix 129460 ms {"timeout_s":600,"plugin_stack":[],"exit_code":0}
27abe256801640ac80de5efdc74bd80f 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: 1,300 prompt + 7,000 completion tokens.

Other CLIs on this task

Other models with this CLI

Other tasks in this category

Embed this result
README / Markdown
[![CodingAgentBench: aider × stepfun-ai/step-3.5-flash 83%](https://codingagentbench.com/badge/aider/stepfun-ai/step-3.5-flash/polyglot/rust-owner-borrow-fix.svg)](https://codingagentbench.com/cell/aider/stepfun-ai/step-3.5-flash/polyglot/rust-owner-borrow-fix)
HTML / iframe
<a href="https://codingagentbench.com/cell/aider/stepfun-ai/step-3.5-flash/polyglot/rust-owner-borrow-fix"><img src="https://codingagentbench.com/badge/aider/stepfun-ai/step-3.5-flash/polyglot/rust-owner-borrow-fix.svg" alt="CodingAgentBench: aider × stepfun-ai/step-3.5-flash 83%" /></a>
CodingAgentBench: aider × stepfun-ai/step-3.5-flash 83%