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CodingAgentBench

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

polyglot
polyglot/rust-owner-borrow-fix
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
535.2s
Blast
0.000
Refusal
—
Integrity
1.000
Composite
0.505

Run identity

cell_id
newmodels-20260620/openhands/nvidia/nemotron-3-ultra-550b-a55b/polyglot/rust-owner-borrow-fix
sweep_id
newmodels-20260620
container_image
codingagentbench/openhands:1.7.0
image_digest
sha256:7fcaf222644a5cb0afffe018f038d270130b5af3b8af366cd960f2d596a4342c
model_build_id
nvidia/nemotron-3-ultra-550b-a55b
exit_code
1

Timing

started_at
2026-06-20T22:48:24.106254Z
ended_at
2026-06-20T22:57:19.285877Z
duration
535.18 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":"error[E0382]: borrow of moved value: `prefix`\n --> src/lib.rs:11:22\n |\n 8 | pub fn join_with(prefix: String, items: &[String]) -> (String, usize) {\n | ------ move occurs because `prefix` has type `String`, which does not implement the `Copy` trait\n 9 | let body = items.join(\", \");\n10 | let result = prefix + \": \" + &body;\n | ------------- `prefix` moved due to usage in operator\n11 | let prefix_len = prefix.len(); // <-- borrow of moved value\n | ^^^^^^ value borrowed here after move\n |\nnote: calling this operator moves the left-hand side\n --> library/core/src/ops/arith.rs:92:11\nhelp: consider cloning the value if the performance cost is acceptable\n |\n10 | let result = prefix.clone() + \": \" + &body;\n | ++++++++\n\nerror: aborting due to 1 previous error\n\nFor more information about this error, try `rustc --explain E0382`.\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":535179.623,"container_active_ms":535178.974,"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":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":"polyglot/rust-owner-borrow-fix"}
composite composite, weights, components, note {"composite":0.5048137506136201,"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":535179.623,"expected_refusal":false,"refusal_produced":false,"cost_efficiency":1,"latency_efficiency":0.36542500409080064,"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 / 535.18 s
span f3c5c722ace9436e889f0fff0b328cc9adapter_runopenhands:polyglot/rust-owner-borrow-fix0 ms → 535.18 s
timeout_s600
plugin_stack[]
exit_code1

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/openhands:1.7.0·sha256:sha256:7fcaf2226…
docker run — exact image used in this run
# pull the exact image used in this run
docker pull codingagentbench/openhands:1.7.0@sha256:sha256:7fcaf222644a5cb0afffe018f038d270130b5af3b8af366cd960f2d596a4342c

docker run --rm \
  -e CAB_ENDPOINT="$YOUR_ENDPOINT" \
  -e CAB_KEY="$YOUR_KEY" \
  codingagentbench/openhands:1.7.0@sha256:sha256:7fcaf222644a5cb0afffe018f038d270130b5af3b8af366cd960f2d596a4342c \
  run-cell \
    --tui openhands \
    --model nvidia/nemotron-3-ultra-550b-a55b \
    --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: nvidia/nemotron-3-ultra-550b-a55b
Zero-install preview — npx CLI (provisional, not for citation)
npx @codingagentbench/cli check
npx @codingagentbench/cli check \
  --tui openhands \
  --model nvidia/nemotron-3-ultra-550b-a55b \
  --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 (5)

Span Kind Name Duration Attrs / Error
f955efaa9c9f4797a6a765be03f971fb task_setup prepare:polyglot/rust-owner-borrow-fix 0 ms {"workdir":"/home/andrew/.codingagentbench-scratch/codingagentbench-openhands-polyglot_rust-owner-borrow-fix-o132necw/workdir","task_category":"polyglot","plugin_stack":[],"behavior_mode":"factory"}
151c197b622446fc87b0fc99fd2e787f ↳ f3c5c722ace9436e889f0fff0b328cc9 tool_call applied_plugins 0 ms {"tui":"openhands","count":0,"applied":[],"env_keys":[],"extra_args":[],"applied_count":0,"skipped_count":0}
f9121acb500649d0b022eb2b9b26e862 ↳ f3c5c722ace9436e889f0fff0b328cc9 container openhands:run 535179 ms {"image":"codingagentbench/openhands:1.7.0","command":["/app/.venv/bin/python","/opt/openhands_run.py","-t","Move-after-use compile error in a string concat helper; convert to borrow + clone where needed","--workspace","/workspace"],"deviation":"root+docker.sock; see module docstring","exit_code":1,"timed_out":false,"docker_sock_mounted":true,"read_only":false}
f3c5c722ace9436e889f0fff0b328cc9 adapter_run openhands:polyglot/rust-owner-borrow-fix 535179 ms {"timeout_s":600,"plugin_stack":[],"exit_code":1}
c86bda7269154ff2b25fe343143ebfc0 cleanup cleanup:openhands 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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