API pricing per million tokens
- Input
- $10
- per 1M, list
- Output
- $50
- per 1M tokens
- Cached input
- $1
- batch $5 / $25
- Context
- 1.05M
- 128K max output
Where to buy it (5)
OpenAIflex-50%$5 / $25cached $0.5
Azure AI Foundrydefault region$10 / $50cached $1
Through a gateway
Your own numbers100M input and 20M output tokens a month: $2,000 direct.
Helicone$2,000+0%
Kong AI Gateway$2,000+0%
LiteLLM$2,000+0%
Vercel AI Gateway$2,000+0%
AWS Bedrock$2,000+0%
Google Vertex AI$2,000+0%
Databricks Mosaic AI$2,000+0%
Hugging Face Inference$2,000+0%
Cloudflare AI Gateway$2,100+5%
Requesty$2,100+5%
Eden AI$2,110+5.5%
OpenRouter$2,110+5.5%
Snowflake Cortex AI$2,400+20%
Martian Gatewayn/a
Portkeyn/a
TrueFoundry AI Gatewayn/a
IBM watsonx.ain/a
OCI Generative AIn/a
NVIDIA NIMn/a
Related models
Claude Fable 5.1Anthropic · 1M$10 / $50in / out per 1M$10$50$0.251MSep 1, 2026
About GPT-6 Astra Pro
GPT-6 Astra Pro is the same underlying model as [GPT-6 Astra](https://openrouter.ai/openai/gpt-6-astra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks.
Takes files, image, text in and returns text. First listed Sep 5, 2026. Blended price $20 per 1M tokens at 3 input to 1 output.
Questions
How much does GPT-6 Astra Pro cost?
$10 per million input tokens and $50 per million output tokens, with cached input at $1, or $5 and $25 through the Batch API.
What is the context window of GPT-6 Astra Pro?
1.05M tokens, with up to 128K tokens of output.
Where is GPT-6 Astra Pro cheapest?
Of 5 routes tracked, OpenAI is cheapest at $5 input and $25 output per million tokens.
List prices from providers' pages on the date shown; your contract may differ. Logos via logo.dev; trademarks belong to their owners.