GPT-6 Astra
vendorOpenAI · gpt-6-astra · prices updated September 29, 2026
Input · 1M tokens
$10
Cached input · 1M
$1−90%
Output · 1M tokens
$50
Price history
inputoutput
Specifications
Context window1,050,000
Knowledge cutoffApr 2026
Tokenizertiktoken (o200k_base)
Batch API−50% off the price
Tools
Web SearchCode InterpreterFile SearchImage GenerationComputer UseMCP
Exact token counts: local tiktoken tokenizer (o200k_base). Tool calls are billed by the provider separately.
About the model
Flagship of the new GPT-6 generation (GA 2026-09-03), 1M context; >272K tokens billed at ×2/×1.5