--- title: "OpenAI: GPT-6 Astra — price, capability and what beats it · Undominated.ai" canonical: https://undominated.ai/models/openai__gpt-6-astra/ description: "OpenAI: GPT-6 Astra: $10.00/M in, $50.00/M out. Independent capability scores, context-tier pricing, and alternatives compared under recorded workload and capability requirements." --- # OpenAI: GPT-6 Astra — price, capability and what beats it · Undominated.ai > OpenAI: GPT-6 Astra: $10.00/M in, $50.00/M out. Independent capability scores, context-tier pricing, and alternatives compared under recorded workload and capability requirements. [Check base rates for this workload](/check/openai__gpt-6-astra/) [Cheaper alternatives](/alternatives/openai__gpt-6-astra/) [Family](/families/gpt-6/) [Compare models](https://undominated.ai/compare/?models=openai%2Fgpt-6-astra) Comparison context Choose up to three standard models in Compare. Requirements and prompt length apply in Compare. This page keeps its stated price basis and workload controls. MODEL PROOF # GPT-6 Astra OpenAI · 04 Sept 2026 Balanced Summarise Chat Code gen Agentic BETTER VALUE OPTION ## A stored alternative has an equal-or-higher measured score and an equal-or-lower price. **$20.00** / 1M tokens Balanced · 3 tokens in per 1 out Base context tier shown; inspect the complete context ladder below. [GPT-5.5](/models/openai__gpt-5.5/) · Δ score 25.6 points · 44% lower measured price · $11.25 / 1M tokens [Gemini 4 Argon](/models/google__gemini-4-argon/) is a further stored option with these losses: 1.1M → 1M context Evidence as of 05 Nov 2026 [openrouter/models](https://openrouter.ai/api/v1/models) [LMArena · cc-by-4.0](https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset) Independent LMArena score 1,441.2 ± 5.91 · 15,038 votes Context window 1.05M Maximum output 128K Input modalities file, image, text Output modalities text Published input price $10.00 / 1M tokens Published output price $50.00 / 1M tokens Pricing kind fixed Context tiers Tiered by context Inspect [complete billing conditions](#billing-details) and endpoint terms below. Price from OpenAI: the cheapest offer that is serving, at standard delivery, with at least 90% of the reference context and at the maker’s precision or better, at its standard rate. Cheaper right now: $10.00/M at OpenAI — delivery tier (flex) It does not pass the like-for-like test, so it never sets a rank. Every price dimension · USD per million tokens | Input | $10.00 /M | | --- | --- | | Output | $50.00 /M | | Cached input | $1.00 /M | | Cache write | $12.50 /M | | Cache write 1h | Unknown /M | | Reasoning | Unknown /M | | Web search | $0.01 /call | **The headline rate does not apply to a long-context workload.** Complete context ladder · 1 tier | More than 272,000 tokens | $20.00 /M in (2×) $75.00 /M out $2.00 /M cached input $25.00 /M cache write | | --- | --- | ### Who sells it The same weights, different shops. Cheapest is not like-for-like when serving precision differs. 8 provider offers · rates, limits and conditions Rates are USD per million tokens. Endpoint terms can differ even when the quoted price and precision match. A listed parameter is a provider declaration, not a task-success test. | Seller | Input | Output | Precision | Uptime (1d) | | --- | --- | --- | --- | --- | | Seller OpenAI openai/flex Endpoint terms Cached input /M $0.500 Context limit 1,050,000 tokens Output limit 128,000 tokens Tools Listed by endpoint Reasoning Listed by endpoint Promotional discount None reported Uptime · last 30 minutes 100.00% | Input $5.00 | Output $25.00 | Precision undeclared | Uptime (1d) 100.00% | | Seller Amazon Bedrock amazon-bedrock/global Endpoint terms Cached input /M $1.00 Context limit 1,050,000 tokens Output limit 128,000 tokens Tools Listed by endpoint Reasoning Listed by endpoint Promotional discount None reported Uptime · last 30 minutes 100.00% | Input $10.00 | Output $50.00 | Precision undeclared | Uptime (1d) 100.00% | | Seller Azure azure Endpoint terms Cached input /M $1.00 Context limit 1,050,000 tokens Output limit 128,000 tokens Tools Listed by endpoint Reasoning Listed by endpoint Promotional discount None reported Uptime · last 30 minutes 100.00% | Input $10.00 | Output $50.00 | Precision undeclared | Uptime (1d) 80.49% | | Seller OpenAI openai Endpoint terms Cached input /M $1.00 Context limit 1,050,000 tokens Output limit 128,000 tokens Tools Listed by endpoint Reasoning Listed by endpoint Promotional discount None reported Uptime · last 30 minutes 100.00% | Input $10.00 | Output $50.00 | Precision undeclared | Uptime (1d) 100.00% | | Seller Amazon Bedrock amazon-bedrock/us-west-2 Endpoint terms Cached input /M $1.10 Context limit 1,050,000 tokens Output limit 128,000 tokens Tools Listed by endpoint Reasoning Listed by endpoint Promotional discount None reported Uptime · last 30 minutes Unknown | Input $11.00 | Output $55.00 | Precision undeclared | Uptime (1d) — | | Seller Azure azure/us Endpoint terms Cached input /M $1.10 Context limit 1,050,000 tokens Output limit 128,000 tokens Tools Listed by endpoint Reasoning Listed by endpoint Promotional discount None reported Uptime · last 30 minutes 100.00% | Input $11.00 | Output $55.00 | Precision undeclared | Uptime (1d) 100.00% | | Seller OpenAI openai/fast Endpoint terms Cached input /M $2.00 Context limit 1,050,000 tokens Output limit 128,000 tokens Tools Listed by endpoint Reasoning Listed by endpoint Promotional discount None reported Uptime · last 30 minutes Unknown | Input $20.00 | Output $100 | Precision undeclared | Uptime (1d) 100.00% | | Seller OpenAI openai/ultrafast Endpoint terms Cached input /M $6.00 Context limit 1,050,000 tokens Output limit 128,000 tokens Tools Listed by endpoint Reasoning Listed by endpoint Promotional discount None reported Uptime · last 30 minutes 100.00% | Input $60.00 | Output $300 | Precision undeclared | Uptime (1d) 100.00% | ### Independent scores | LMArena Elo | 1441.2 max | | --- | --- | | LMArena row | gpt-6-astra-max | LMArena Elo under CC BY 4.0. Absence of another board is not a score of zero. ### Capability | Context window | 1M | | --- | --- | | Max output | 128K | | Input modes | file, image, text | | Tool use | yes | | Reasoning | always on | | Open weights | no | ### Provenance | Price source | [openrouter.ai](https://openrouter.ai/api/v1/models) | | --- | --- | | Fetched | 2026-11-05 | | Quality data | verified | GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon... ## Questions this page answers What does GPT-6 Astra cost? $10.00/M in, $50.00/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription. Does GPT-6 Astra have an independent quality score? GPT-6 Astra has an LMArena score in this catalogue. What beats GPT-6 Astra? GPT-5.5 has an equal-or-higher measured score and an equal-or-lower price. Does this page use Artificial Analysis scores for GPT-6 Astra? No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated. MODEL MONUMENT ## Save or share this proof Download proof card · 1200 × 630 Preview and more sharing options OpenAI: GPT-6 Astra. Balanced workload. Better value option available. Evidence as of 05 Nov 2026. Copy model link Download square card · 1080 × 1080 Copy landscape image Share landscape card ## Related - Higher score or lower price, neither worse [GPT-5.5](/models/openai__gpt-5.5/) - Higher score or lower price, with a named trade [Gemini 4 Argon](/models/google__gemini-4-argon/) - Side by side [Claude Fable 5.1](/compare/anthropic__claude-fable-5.1--vs--openai__gpt-6-astra/) - Nearby on the capability axis [Claude Sonnet 5](/models/anthropic__claude-sonnet-5/) - Same vendor [GPT-6.1 Sol](/models/openai__gpt-6.1-sol/) - OpenAI models [OpenAI](/providers/openai/) - Where this model appears [disagreement](/disagreement/) - Side by side [GPT-5.6 Sol](/compare/openai__gpt-5.6-sol--vs--openai__gpt-6-astra/) - Nearby on the capability axis [GLM 4.6](/models/z-ai__glm-4.6/) - Same vendor [GPT-5.6 Terra](/models/openai__gpt-5.6-terra/) - Where this model appears [cliffs](/cliffs/) - Side by side [Grok 4.7](/compare/openai__gpt-6-astra--vs--x-ai__grok-4.7/) ## Badge The verdict as one SVG, for a README or a docs page. It states this model's dominance status at the balanced workload on the LMArena lens, with the date it was computed, and it is rebuilt with the catalogue — so it changes when the verdict changes, including to one you would rather it did not. Markdown Copy [![GPT-6 Astra — Undominated.ai dominance verdict](https://undominated.ai/badge/openai__gpt-6-astra.svg)](https://undominated.ai/models/openai__gpt-6-astra/) HTML Copy GPT-6 Astra — Undominated.ai dominance verdict Direct file: [https://undominated.ai/badge/openai__gpt-6-astra.svg](https://undominated.ai/badge/openai__gpt-6-astra.svg) — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never older than the last deploy. ## Continue your investigation - [Explore model families](/families/) - [Compare a shortlist](/compare/) - [Check a model](/check/) - [Understand the evidence](/methodology/)