Published reference2026-05-28

SWE-bench Pro

Pro evaluation · sample size not reported. Compare only matched task sets and protocols.

Claude Opus 4.8 · Anthropic system card · Anthropic · Adaptive thinking · max

↗ Published result

Anthropic

Protocol as described by the publisher

Claude Opus 4.8 system card ↗

Reported score69.2%

Throughput—

Tokens per second · see measurement basis

Concurrency—

As recorded on this receipt

Published reference. This is a source-reported result, not a test run by this lab. Provider system card: max effort, default sampling, generally five trials; GPQA averages 25 trials. Source results differ from OpenAI’s comparative publication.

Run configuration & provenance +

Context: Not recorded
Temperature: Not recorded
Wall time: Not recorded
Weight file: Provider-managed / not reported
Revision: Not reported
Reasoning: Not reported
Agent version: Not reported
Output token limit: Not reported
Dataset revision: Not reported
Harness host: Not reported
Model host: Published reference
Input tokens: Not reported
Output tokens: Not reported
Cached input tokens: Not reported
Agent turn / step limit: Not reported
Concurrency: Not reported
Weight file size: Not reported

Throughput measurement: Measurement method not separately reported. This should not be treated as standardized decode-only speed.

Provider evaluation

Provider system card: max effort, default sampling, generally five trials; GPQA averages 25 trials. Source results differ from OpenAI’s comparative publication.

Run ID: research-claude-opus-4.8-claude-code-anthropic-system-card-swe-bench-pro

Tasks

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