Compare models
GPT-Image-2.6 SunburstView all token prices
Image generation and editing for detailed visual work
Performance
—
Speed
—
Input
Output
Reasoning tokens
Pricing
Text tokens
Input / 1M tokens
$5.00
Cached input / 1M tokens
$1.25
Cache writes / 1M tokens
-
Output / 1M tokens
-
Context
Window
-
Max Output Tokens
-
Knowledge Cutoff
—
Endpoints
v1/chat/completions
v1/responses
v1/batch
v1/images/generations
v1/images/edits
Supported Features
Streaming
Function calling
Structured outputs
Image input
Rate Limits
Free
-
Build
-
Launch
-
Grow
-
GPT-6 Astra
Our most capable model for the most demanding work.
Reasoning
Speed
Input
Output
Reasoning tokens
Pricing
Text tokens
Input / 1M tokens
$10.00
Cached input / 1M tokens
$1.00
Cache writes / 1M tokens
$12.50
Output / 1M tokens
$50.00
Context
Window
1,050,000
Max Output Tokens
128,000
Knowledge Cutoff
Apr 30, 2026
Endpoints
v1/chat/completions
v1/responses
v1/batch
v1/images/generations
v1/images/edits
Supported Features
Streaming
Function calling
Structured outputs
Image input
Rate Limits
TPM
Free
-
Build
1,000,000
Launch
4,000,000
Grow
40,000,000