Anthropic: Claude Opus 4

anthropic/claude-opus-4

Created May 22, 2025200,000 context

$15/M input tokens$75/M output tokens

Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in software engineering, achieving leading results on SWE-bench (72.5%) and Terminal-bench (43.2%). Opus 4 supports extended, agentic workflows, handling thousands of task steps continuously for hours without degradation.

Anthropic: Claude Opus 4

anthropic/claude-opus-4

Created May 22, 2025200,000 context

$15/M input tokens$75/M output tokens

Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in software engineering, achieving leading results on SWE-bench (72.5%) and Terminal-bench (43.2%). Opus 4 supports extended, agentic workflows, handling thousands of task steps continuously for hours without degradation.

Recent activity on Claude Opus 4

Total usage per day on OpenRouter

Prompt

69.3M

Completion

6.22M

Reasoning

24K

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.