Anthropic upgraded its Opus line to Claude Opus 4.8

Claude Opus 4.8 became available across Claude products and the API at the existing $5 input / $25 output per 1M token price, with a 1M context window.

May 28, 2026Views:0Effective: May 28, 2026

Impact Assessment

Cost2

Reliability2

Migration2

Quality4

Compliance1

Use Opus 4.8 as the current Opus baseline and re-run agentic and browser benchmarks before migrating.

Changes

Field	Before	After
model	claude-opus-4-7	claude-opus-4-8
pricing	—	5, 25
context_window	—	1000000

Sources

announcement

Introducing Claude Opus 4.8

Anthropic launched Opus 4.8 at $5 input and $25 output per 1M tokens.

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