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Alex Mercer
Alex Mercer

Posted on • Originally published at aipricing.guru

Claude Opus 4.8 pricing: same API rate, cheaper fast mode

Anthropic released Claude Opus 4.8, and the pricing story is unusually clean: the regular Claude API rate did not change.

Standard Claude Opus 4.8 pricing:

  • Input: $5.00 per 1M tokens
  • Cached input: $0.50 per 1M tokens
  • Output: $25.00 per 1M tokens
  • Batch input: $2.50 per 1M tokens
  • Batch output: $12.50 per 1M tokens

The bigger economic change is fast mode.

Fast mode Input Output
Opus 4.6 / 4.7 $30.00 / 1M $150.00 / 1M
Opus 4.8 $10.00 / 1M $50.00 / 1M

That is still a 2x premium over standard Opus 4.8 pricing, but it is no longer a 6x premium. For coding agents, browser agents, research assistants, and latency-sensitive tools, that changes the test case.

My read: keep Sonnet 4.6 or cheaper OpenAI/Google models for bulk work. Use Opus 4.8 where better reasoning, fewer retries, or faster completion directly affects the outcome.

Full breakdown with budget examples:
https://www.aipricing.guru/news/claude-opus-4-8-pricing-fast-mode-may-2026/

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