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 Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$2.00/$10.00
$5.00/$30.00
Input /1M
$2.00
$5.00
Output /1M
$10.00
$30.00
Cached in /1M
$0.2
$0.5
Context
1M
1M
Δ input since launch
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—
Δ output since launch
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Released
Sep 2026
Apr 2026
Status
—
—
Provider
Anthropic
OpenAI