Reference

LLM models

Explore model specifications, benchmarks and costs.

Catalog snapshot455 models · 53 labs

Reference

LLM models

Explore model specifications, benchmarks and costs.

455 models

Anthropic

Claude Opus 5.5

claude-opus-5-5
Context
1000000
Max output
128000
Released
2026-09-22
Weights
Proprietary

API pricing

Anthropic · USD / 1M tokens

Input price $4 · Output price $20

Sources

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