OpenAI: GPT-6 Astra (batch)

Text input Image input File input Text output
Author's Description

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...

Key Specifications
Cost
+$$$$$
Context
1M
Released
Sep 04, 2026
Speed
Ability
Reliability
Supported Parameters

This model supports the following parameters:

Tool Choice Response Format Include Reasoning Reasoning Tools Max Tokens Structured Outputs Seed
Features

This model supports the following features:

Reasoning Tools Response Format Structured Outputs
Performance Summary

OpenAI's GPT-6 Astra, released on September 4, 2026, is positioned as a flagship model for demanding end-to-end tasks, excelling in advanced analysis, software engineering, and deep research. It demonstrates competitive response times, ranking in the 57th percentile for speed across benchmarks. However, its pricing is at a premium, placing it in the 18th percentile. A standout feature is its exceptional reliability, achieving a 100% success rate across all evaluated benchmarks, indicating consistent and usable responses. GPT-6 Astra exhibits remarkable strengths in specific areas. It achieved perfect accuracy in both Hallucinations (Baseline) and Reasoning (Baseline) tests, demonstrating a strong ability to acknowledge uncertainty and perform complex multi-step analysis. It also performed very well in Instruction Following (91.0% accuracy, 95th percentile) and Coding (94.0% accuracy, 81st percentile). While its Email Classification (99.0% accuracy) and Mathematics (93.0% accuracy) scores are solid, its performance in General Knowledge (91.0% accuracy, 26th percentile) and Ethics (95.0% accuracy, 24th percentile) suggests these areas are relative weaknesses compared to its other high-performing capabilities.

Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $5
Completion $25
Input Cache Read $0.5
Input Cache Write $6.25
Web Search $10000

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
OpenAI
OpenAI | openai/gpt-6-astra-20260903 1M $5 / 1M tokens $25 / 1M tokens
Azure
Azure | openai/gpt-6-astra-20260903 1M $10 / 1M tokens $50 / 1M tokens
OpenAI
OpenAI | openai/gpt-6-astra-20260903 1M $10 / 1M tokens $50 / 1M tokens
Azure
Azure | openai/gpt-6-astra-20260903 1M $11 / 1M tokens $55 / 1M tokens
OpenAI
OpenAI | openai/gpt-6-astra-20260903 1M $20 / 1M tokens $100 / 1M tokens
Benchmark Results
Benchmark Category Reasoning Strategy Free Executions Accuracy Cost Duration
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