Compare models

Up to four models side by side.

Compare models
	Claude Mythos 5.1 Anthropic	Claude Opus 4.1 Anthropic Retired
Input	$10.00, Best in row	$15.00
Output	$50.00, Best in row	$75.00
Blended	$20.00, Best in row	$30.00
Context window	1M, Best in row	200k
Max output	128k	No data
Vision	✓	✓
Reasoning	✓	✓
Tool calling	✓	✓
Structured output	✓	✓
Prompt caching	✓	✓
Batch API	✓	✓
Licence	Proprietary	Proprietary
API model id	`claude-mythos-5-1`	`claude-opus-4-1-20250805`

At a glance

Input price, per million tokens

Output price, per million tokens

Context window

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Language models 77

Image generation 18

Video generation 11

Text to speech 9

Speech to text 25

Voice and realtime 17

Embeddings 3