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  1. Models
  2. Text
  3. OpenAI

GPT 6 Astra

OpenAI's most capable model for the hardest end-to-end work, with state-of-the-art performance in computer use, browsing, software engineering, science, and professional tasks. Astra is designed to carry long, multistep workflows across code, browsers, and professional software through to a finished result.

  • Reasoning
  • Vision
  • Native PDF input
  • Tool Calling
  • Structured Output

Added Sep 3, 2026

Pricing

Auto routing · per 1M tokens
Input
$10.00
Output
$50.00
Cache read
$1.00
Compare provider prices

Specifications

Context window
1.1M
Max output
128K
Avg output (7d)
924 tokens
Longer than 71% of models

Benchmarks

Sourced from Artificial Analysis.

Intelligence Index

51.6

Intelligence Index: 51.6
Better than 88% of models compared

Coding Index

76.9

Coding Index: 76.9
Better than 97% of models compared

Agentic Index

51.0

Agentic Index: 51.0
Better than 93% of models compared

Agentic work

AutomationBench-AA

Workflow automation with guardrail penalties

64.6%

Better than 90% of models compared

AutomationBench-AA Tasks Completed

Fully completed workflows without guardrail violations

33.6%

Better than 90% of models compared

Harvey LAB-AA v1.1

Legal tasks fully passed without material hallucinations

8.6%

Better than 82% of models compared

AA-Briefcase v1.1

Agentic knowledge work (Elo)

1460 Elo

Better than 80% of models compared

GDPval-AA v2.1

Economically valuable tasks (Elo)

1498 Elo

Better than 81% of models compared

Document reasoning

GDP.pdf

Professional PDF reasoning: all-pass rate

30.4%

Better than 96% of models compared

AA-LCR v1.1

Long context reasoning with updated grading

79.7%

Better than 83% of models compared

MLCR-AA

Medical long-context reasoning

38.3%

Better than 98% of models compared

Reasoning

HLE

Humanity's Last Exam

52.7%

Better than 97% of models compared

Coding

Terminal-Bench v4.0

Practical coding and terminal tasks

49.5%

Better than 90% of models compared

SciCode

Python programming for scientific computing

54.2%

Better than 72% of models compared

Legacy benchmarks

GPQA Diamond (legacy)

Graduate-level scientific reasoning

93.9%

Better than 98% of models compared

AA-LCR (unversioned / legacy)

Long context reasoning evaluation

79.7%

Better than 83% of models compared

Last updated Nov 4, 2026

Artificial Analysis

Providers

Auto routing is available for this model. Explicit provider selection is not available.

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Reliability

Related text models

Compare GPT 6 Astra with similar models from the same provider or model family.

GPT Astra Latest

openai/gpt-astra-latest

Compatibility alias that routes to GPT 6 Astra, the latest supported GPT Astra model.

GPT 6 Astra Pro

openai/gpt-6-astra-pro

GPT 6 Astra in Pro reasoning mode. Uses additional model work for difficult tasks, with higher latency and token usage at the same per-token rates. Reasoning effort remains independently configurable.

GPT 6.1 Terra Pro

openai/gpt-6.1-terra-pro

GPT-6.1 Terra Pro uses the same underlying model as GPT-6.1 Terra with Pro reasoning mode enabled for higher-quality responses on complex tasks.

GPT 6.1 Terra

openai/gpt-6.1-terra

GPT-6.1 Terra is a fast, efficient model for everyday work, with strong visual reasoning, clearer writing, and capable coding at half GPT-6.1 Sol’s standard token prices. It supports text and image input, tool calling, structured outputs, and optional reasoning from none through max.

GPT 6.1 Sol

openai/gpt-6.1-sol

GPT-6.1 Sol delivers near-Astra performance at a lower cost for complex coding, computer use, and professional work. It supports text and image input, tool calling, structured outputs, and reasoning from low through max.

GPT 6.1 Sol Pro

openai/gpt-6.1-sol-pro

GPT-6.1 Sol Pro uses the same underlying model as GPT-6.1 Sol with Pro reasoning mode enabled for higher-quality responses on complex tasks.