Anthropic API pricing

Official16 language models

As of Oct 14, 2026, Anthropic lists 16 language models through its API. Its cheapest language model is Claude Haiku 5.5 at $0.10 input / $0.50 output per million tokens.

Language models (16)

Prices per million tokens.

Model	Input	Output	Cached input	Context
Claude Fable 5 claude-fable-5	$10.00	$50.00	$1.00	1M
Claude Fable 5.1 claude-fable-5-1	$10.00	$50.00	$0.25	1M
Claude Haiku 4.5 claude-haiku-4-5	$1.00	$5.00	$0.10	200K
Claude Haiku 5.5 claude-haiku-5-5	$0.10 from	$0.50	$0.01	1M
Claude Mythos 5 claude-mythos-5	$10.00	$50.00	$1.00	1M
Claude Mythos 5.1 claude-mythos-5-1	$10.00	$50.00	$0.25	1M
Claude Opus 4.5 claude-opus-4-5	$5.00	$25.00	$0.50	200K
Claude Opus 4.6 claude-opus-4-6	$5.00	$25.00	$0.50	1M
Claude Opus 4.7 claude-opus-4-7	$5.00	$25.00	$0.50	1M
Claude Opus 4.8 claude-opus-4-8	$5.00	$25.00	$0.50	1M
Claude Opus 5 claude-opus-5	$5.00	$25.00	$0.50	1M
Claude Opus 5.5 claude-opus-5-5	$4.00	$20.00	$0.20	1M
Claude Sonnet 4.5 claude-sonnet-4-5	$3.00	$15.00	$0.30	200K
Claude Sonnet 4.6 claude-sonnet-4-6	$3.00	$15.00	$0.30	1M
Claude Sonnet 5 claude-sonnet-5	$2.00	$10.00	$0.20	1M
Claude Sonnet 5.5 claude-sonnet-5-5	$2.00	$10.00	$0.10	1M

Claude Fable 5
claude-fable-5
Input
$10.00
Output
$50.00
Context
1M
Claude Fable 5.1
claude-fable-5-1
Input
$10.00
Output
$50.00
Context
1M
Claude Haiku 4.5
claude-haiku-4-5
Input
$1.00
Output
$5.00
Context
200K
Claude Haiku 5.5
claude-haiku-5-5
Input
$0.10
Output
$0.50
Context
1M
Claude Mythos 5
claude-mythos-5
Input
$10.00
Output
$50.00
Context
1M
Claude Mythos 5.1
claude-mythos-5-1
Input
$10.00
Output
$50.00
Context
1M
Claude Opus 4.5
claude-opus-4-5
Input
$5.00
Output
$25.00
Context
200K
Claude Opus 4.6
claude-opus-4-6
Input
$5.00
Output
$25.00
Context
1M
Claude Opus 4.7
claude-opus-4-7
Input
$5.00
Output
$25.00
Context
1M
Claude Opus 4.8
claude-opus-4-8
Input
$5.00
Output
$25.00
Context
1M
Claude Opus 5
claude-opus-5
Input
$5.00
Output
$25.00
Context
1M
Claude Opus 5.5
claude-opus-5-5
Input
$4.00
Output
$20.00
Context
1M
Claude Sonnet 4.5
claude-sonnet-4-5
Input
$3.00
Output
$15.00
Context
200K
Claude Sonnet 4.6
claude-sonnet-4-6
Input
$3.00
Output
$15.00
Context
1M
Claude Sonnet 5
claude-sonnet-5
Input
$2.00
Output
$10.00
Context
1M
Claude Sonnet 5.5
claude-sonnet-5-5
Input
$2.00
Output
$10.00
Context
1M

Prices in USD from LiteLLM and models.dev, checked daily; confirm on Anthropic's pricing page before you rely on a number.