Largest Context Windows
Models with the biggest context windows for processing long documents
xai
Grok 4.20
Input
$2.00
Output
$6.00
Context
2M
x-ai
Grok 4.1 FastUsable
Input
$0.20
Output
$0.50
Context
2M
openai
GPT-5.4 Pro
Input
$30.00
Output
$180.00
Context
1.1M
openai
GPT-5.4Strong
Input
$2.50
Output
$15.00
Context
1.1M
openai
GPT-5.4 MiniStrong
Input
$0.75
Output
$4.50
Context
1.1M
openai
GPT-5.4 NanoStrong
Input
$0.20
Output
$1.25
Context
1.1M
anthropic
Claude Opus 4.6Strong
Input
$5.00
Output
$25.00
Context
1M
anthropic
Claude Sonnet 4.6Strong
Input
$3.00
Output
$15.00
Context
1M
google
Gemini 3.1 Pro Preview
Input
$2.00
Output
$12.00
Context
1M
google
Gemini 2.5 ProStrong
Input
$1.25
Output
$10.00
Context
1M
openai
GPT-4.1Strong
Input
$2.00
Output
$8.00
Context
1M
google
Gemini 3 Flash Preview
Input
$0.50
Output
$3.00
Context
1M
google
Gemini 2.5 FlashUsable
Input
$0.30
Output
$2.50
Context
1M
openai
GPT-4.1 MiniStrong
Input
$0.40
Output
$1.60
Context
1M
google
Gemini 3.1 Flash-Lite Preview
Input
$0.25
Output
$1.50
Context
1M
How We Picked
Ranked by largest context from our nightly benchmark data. Full methodology →