OpenAI

GPT-6 Astra — Benchmark Scores, Pricing & Performance Analysis

FLAGSHIPOpenAI
Input Cost
$10.0/1M
Output Cost
$50.0/1M
Context Window
1.1M
Max Output
128K
Knowledge Cutoff
Apr 2026
Accepts
text, image, pdf

GPT-6 Astra is an AI model by OpenAI. View detailed benchmark scores, pricing data, and performance metrics on Serenities AI Models.

Specifications last checked against the provider on . Benchmark scores carry their own source, linked beside each number.

General Benchmarks

AA Intelligence Index
52.82nd of 66

Artificial Analysis composite intelligence score across 10 sub-benchmarks

Artificial Analysis (via OpenRouter)

Coding Benchmarks

AA Coding Index
76.94th of 96

Artificial Analysis composite coding score

Artificial Analysis (via OpenRouter)

Reasoning Benchmarks

AA Agentic Index
51.55th of 70

Artificial Analysis composite score for multi-step tool-using tasks

Artificial Analysis (via OpenRouter)
GPQA Diamond
94.4%2nd of 140

Graduate-level science Q&A by domain experts

Papers

Cost Benchmarks

Input Cost
$10.0394th of 413

Cost per 1M input tokens

OpenRouter API
Output Cost
$50.0397th of 413

Cost per 1M output tokens

OpenRouter API
Cached Input Cost
$1.0131st of 136

Cost per 1M cached input tokens — the price that actually applies to a long agent conversation

OpenRouter API

Context Benchmarks

Context Length
1.1M9th of 451

Maximum context window size

OpenRouter API

Available from 20 providers

The same model costs different amounts depending on who serves it. You can bring your own key for 5 of these — connect it here.

ProviderInput / 1MOutput / 1MCached inContextYour key
302.AI$10$501.1M
Amazon Bedrock$10$50$11.1MSupported
Azure$10$50$11.1MSupported
CrossModel$10$50$11.1M
DevPass (LLM Gateway)$10$50$11.1M
Eden AI$10$50$11.1M
GitHub Copilot$10$50$11.1M
Kilo Gateway$10$50$11.1M
LLM Gateway$10$50$11.1M
Merge Gateway$10$50$11.1M
NanoGPT$10$50$11.1M
Neon$10$50$11.1M
Ofox$10$50$11.1M
OpenAI$10$50$11.1MSupported
OpenCode Zen$10$50$11.1M
OpenRouter$10$50$11.1MSupported
Requesty$10$50$11.1M
Venice AI$10$50$11.1M
Vivgrid$10$50$11.1M
Vercel AI Gateway$20$100$21.1MSupported

GPT-6 Astra — Benchmark Scores Overview

Scores normalized to percentage scale for visual comparison. ELO scores mapped to 0-100 range (1100-1500).

GPT-6 Astra — Frequently Asked Questions

How much does GPT-6 Astra cost?

GPT-6 Astra costs $10.0 per 1M input tokens and $50.0 per 1M output tokens. This places it in the premium pricing tier.

What is the context window of GPT-6 Astra?

GPT-6 Astra has a context window of 1.1M tokens. This determines how much text, conversation history, and code the model can process in a single request.

Who created GPT-6 Astra?

GPT-6 Astra was created by OpenAI. It is classified as a flagship model in our catalogue.

Is GPT-6 Astra open source?

No, GPT-6 Astra is a proprietary model. It is available through OpenAI's API and compatible providers.