OpenAI
OpenAI GPT-6 model for focused, high-volume workloads where cost efficiency is the priority.
1.05M ctxUSD 0.10 / 1M input tok; USD 0.50 / 1M output tok
Introducing GPT-6 AstraOpenAIReleased August 20, 2026
GPT-6 Astra
OpenAI’s premier sixth-generation frontier model, built for the most demanding end-to-end software engineering and scientific research tasks.
reasoning-llmProprietary API$10.00 / 1M tok (GPT-6 Frontier)Context: 1.05M (1,050,000 tokens)Arena ELO: 1560
Technical Specifications
Architecture Type
Next-Generation GPT-6 Frontier Reasoning Transformer
Total Parameters
Next-Gen Frontier Scale
Context Window
1.05M (1,050,000 tokens)
Max Output Tokens
128K (128,000 tokens)
Knowledge Cutoff
April 2026
Supported Modalities
text, code, vision, reasoning
License & Access
OpenAI Business Terms
Benchmark Evaluations
Math500
99.2
Mmlu Pro
93.5
Humaneval
99.4
Swe Bench Verified
78.4
Chatbot Arena ELO
1560
Deep Architectural Overview
GPT-6 Astra introduces OpenAI’s sixth-generation foundation architecture. Featuring high-order test-time reasoning, native computer use, and 1.05M context retention, it automates end-to-end software engineering projects and multidisciplinary scientific breakthroughs.
Strengths & Considerations
Core Strengths
- Highest benchmark performance across OpenAI history (93.5% MMLU-Pro, 78.4% SWE-bench)
- 1,050,000 token context window with 128k output buffer
- Unrivaled autonomous agent problem solving
Known Limitations
- Premium pricing ($10/$50) designed for mission-critical enterprise workloads
Token & API Pricing
Input Tokens (1M)$10.00
Output Tokens (1M)$50.00
Cached Input (1M)$1.0000
Pricing is verified directly against OpenAI's developer documentation and API rate sheets.
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