GPT-6 Astra (batch)
by OpenAItext+image+file->text1 endpoint
Overview
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon agentic tasks that involve computer and browser use.
Capabilities
Text generation
Image understanding
Tool use / Function calling
Structured output
Extended reasoning
Prompt caching
Long context
File input
Deterministic seed
Modalities
Input
FileImageText
Output
Text
Technical Specifications
Context Window
1.1M tokens
Max Output
128K tokens
Tokenizer
GPT
Content Moderation
Enabled
Supported Parameters
include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools
Pricing
Per 1M tokens
Input$5.00
Output$25.00
Cache read$0.50
Cache write$6.25
Added
September 4, 2026
Last synced 9/18/2026