Claude Opus 4.8

by Claude model

Superseded. Anthropic's documentation now lists Claude Opus 4.8 under Legacy models; the current equivalent is Claude Opus 5. Opus 4.8 remains available on the API at $5 per million input tokens and $25 per million output, with a 1M-token context window, 128k max output and a January 2026 training cutoff.

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Good at

• Chat 4 / 5
• Code Generation 4 / 5
• Copywriting 4 / 5
• Reasoning 4 / 5
• Text Generation 4 / 5