Model Comparison → OpenAI

GPT-6 Astra

GPT-6 Astra by OpenAI. Input: $10.00/M tokens · Output: $50.00/M tokens · 1000K context window.

✓ Vision✓ Tool use✓ Prompt caching✓ ReasoningSlow
Pricing (verified 2026-10-23)
TypePrice / 1M tokensNotes
Input$10.00Per 1M input tokens
Output$50.00Per 1M output tokens
Cache read$1.00Cached prefix read-back
Source: OpenAI official pricing page · Last verified 2026-10-23
Context Window
1M tokens
≈ 750K words · 3 pages of text

Calculate your GPT-6 Astra costs

Prompt Cost Calculator
Exact cost for your prompt
Agent Cost Calculator
Multi-step agent loops
Prompt Caching Calculator
Caching savings
Conversation Cost
Chat history strategies

Other OpenAI models

GPT-5.4 — $2.50/MGPT-5 mini — $0.25/MGPT-4o — $2.50/M

Pricing verified 2026-10-23 from OpenAI official pricing. All prices in USD per 1M tokens. See methodology and price changelog.