meta
GPT-6 Astra vs Muse Spark 1.3
81.6 overall · $2.00 / 1M
// openai
GPT-6 Astra
openai/gpt-6-astra
GPT-6 Astra costs $10.00 per 1M input tokens and $50.00 per 1M output tokens with a 1.1M-token context window.
A reasoning, tool-calling model from openai, released Sep 4, 2026. On LiveBench it scores 82.2 overall — #4 of 55 benchmarked models — and ranks highest in reasoning (#1).
- Input / 1M
- $10.00
- Output / 1M
- $50.00
- Context
- 1.1M
- LiveBench overall
- 82.2 · #4
Specs and pricing
| Input price USD per 1M prompt tokens | $10.00 |
|---|---|
| Output price USD per 1M completion tokens, reasoning included | $50.00 |
| Blended price 3:1 input:output — #10 most expensive of 343 listed models | $20.00 |
| Cached input read Blank means not priced separately — not free | $1.00 |
| Cache write | $12.50 |
| Context window | 1,050,000 tokens |
| Max output | 128,000 tokens |
| Input modalities | file, image, text |
| Tool calling | Yes |
| Extended reasoning | Yes |
| Knowledge cutoff | — |
| Listed | Sep 4, 2026 |
Also listed as openai/gpt-6-astra:batch ($10.00 blended)— the same model at a different price or rate limit.
Benchmarks by category
LiveBench scores out of 100, with GPT-6 Astra's rank among the 55 benchmarked models listed here. Run: gpt-6-astra-max.
Language#3 of 55
89.4
$0.1240 measured per point
What GPT-6 Astra costs to run
Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.
| Workload | Per month |
|---|---|
| Support chatbot 1.2K in / 400 out × 200K requests | $5,752/mo |
| RAG assistant 8K in / 600 out × 100K requests | $7,400/mo |
| Coding agent 40K in / 4K out × 20K requests | $6,960/mo |
| Document extraction 20K in / 1.5K out × 50K requests | $13,300/mo |
| Bulk classification 500 in / 20 out × 5M requests | $25,500/mo |
Compare GPT-6 Astra with
The benchmarked models closest to it on overall score.
anthropic
GPT-6 Astra vs Claude Fable 5
83.0 overall · $20.00 / 1M
deepseek
GPT-6 Astra vs DeepSeek V4.1 Flash
81.1 overall · $0.200 / 1M
anthropic
GPT-6 Astra vs Claude Opus 5.5
83.2 overall · $8.00 / 1M
openai
GPT-6 Astra vs GPT-5.6 Sol
81.1 overall · $4.00 / 1M
anthropic
GPT-6 Astra vs Claude Fable 5.1
83.4 overall · $20.00 / 1M
GPT-6 Astra FAQ
How much does GPT-6 Astra cost?
GPT-6 Astra lists at $10.00 per 1M input tokens and $50.00 per 1M output tokens, with cached input reads at $1.00 per 1M. A RAG assistant handling 100K requests a month (8K tokens in, 600 out) comes to about $7,400 at list price.
What is the context window of GPT-6 Astra?
GPT-6 Astra accepts up to 1,050,000 tokens of context and can return up to 128,000 output tokens per response.
Does GPT-6 Astra support tool calling?
Yes — GPT-6 Astra supports tool (function) calling and exposes extended reasoning. It accepts file, image, text input.
How does GPT-6 Astra score on benchmarks?
On LiveBench release 2026-06-25 (run: gpt-6-astra-max), GPT-6 Astra scores 82.2 overall, ranking #4 of 55 benchmarked models.
What is the API model ID for GPT-6 Astra?
On OpenRouter the model ID is "openai/gpt-6-astra". It was listed on Sep 4, 2026.
More from openai
How these numbers are produced
- Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
- Scores and ranks — LiveBench release 2026-06-25. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
- Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.
Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.