Compare two models
Select any two models. Input, output, cached, and context rarely move together — the cheaper model on one line isn't always the cheaper one on the next.
Description
Claude Opus 4.8 is Anthropic's previous-generation flagship model, supporting text, image, and file inputs with a 1M-token context window and extended reasoning capabilities.
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$2.50/$12.50
$5.00/$30.00
Input /1M
$2.50
$5.00
Output /1M
$12.50
$30.00
Cached in /1M
$0.25
$0.5
Context
1M
1M
Δ input since launch
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—
Δ output since launch
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Released
May 2026
Apr 2026
Status
—
—
Provider
Anthropic
OpenAI