GPT-6 Astra
GPT-6 Astra by OpenAI: League Score, pricing, context window and sourced benchmarks — the full tracked record.
97 Closed $10.00 / $50.00 per 1M 1.1M context
League positions: #2 overall · #1 Reasoning Division · #28 Value Division. Score coverage: 55% of components measured. Count tokens & cost for GPT-6 Astra · Estimate a workload cost
Coming next: GPT-6 Astra wider availability (API + paid tiers) — Rolling out from Oct 2026; no GA date (Announced)
Agent-ready: this model is tracked with agentic strengths. See the AI Agents section for the products and frameworks that put models like this to work.
Specifications & pricing
| Maker | OpenAI — lab profile |
| Family | GPT-6 |
| Released | Sep 3, 2026 |
| Status | Current |
| Weights | Closed / proprietary API |
| License | Proprietary |
| Knowledge cutoff | 2026-04-30 |
| Context window | 1,050,000 tokens |
| Max output | 128,000 tokens |
| Modalities in | text, image |
| Modalities out | text |
| API price (input) | $10.00 per 1M tokens |
| API price (output) | $50.00 per 1M tokens |
| Cached input | $1.00 per 1M |
| Blended (3:1 in:out) | $20.00 per 1M |
| Pricing source | Official pricing page (checked Oct 14, 2026) |
| API access | OpenAI API |
Benchmark results
| Benchmark | Score | Source | Date | Link |
|---|---|---|---|---|
| GPQA Diamond | 96.0 / 100 | BenchLM GPQA leaderboard | Oct 14, 2026 | Source |
| LiveBench overall | 86.1 / 100 | LiveBench | Oct 14, 2026 | Source |
How its League Score is built
| Component | Raw | Normalised | Weight | Date | Link |
|---|---|---|---|---|---|
| LiveBench overall | 86.1 | 95.5 | 40% | Oct 14, 2026 | Source |
| GPQA Diamond | 96.0 | 100.0 | 15% | Oct 14, 2026 | Source |
Normalised 0–100 against the tracked field; missing components redistribute their weight. Full rules on the methodology page.
Closest rivals
- GPT-6 Astra vs Claude Opus 5.5 — full comparison or compare any pair
- GPT-6 Astra vs Claude Fable 5.1 — full comparison or compare any pair
- GPT-6 Astra vs GPT-6.1 Sol — full comparison or compare any pair
FAQ
How much does GPT-6 Astra cost?
GPT-6 Astra costs $10.00 per 1M input tokens and $50.00 per 1M output tokens on the first-party API (checked Oct 14, 2026).
What is the context window of GPT-6 Astra?
GPT-6 Astra accepts up to 1,050,000 tokens of context.
Is GPT-6 Astra open source?
No — GPT-6 Astra is a closed model available through OpenAI’s API and products.
Data verified Oct 14, 2026. Spotted an error? Every figure above links to its source.