GPT-6 Astra API pricing.
GPT-6 Astra is OpenAI’s model on the API market, released 4 Sept 2026. Prices are per million tokens in USD, as last read from the price list.
Each bar is this model's score in that area. The white tick marks the best score any model Epoch has tested reaches there.
The index combines many benchmarks into one general-capability score; the range is how sure Epoch is of the number. Each area score is this site's average of the model's Epoch results in that area, where 0 is what guessing would score and 100 is perfect. Compare every model, and value for money →
Source: Epoch AI, Capabilities & benchmarking (licensed CC BY 4.0). Data refreshed 2 November 2026. These are Epoch's own tests; other benchmark sites can rank models differently.
- GPT-6.1 Terra · OpenAIindex 168.11 (1 below) · 90% cheaper
- GPT-6.1 Sol · OpenAIindex 167.82 (1 below) · 80% cheaper
- Claude Sonnet 5.5 · Anthropicindex 166.74 (2 below) · 80% cheaper
- Gemini 4 Argon · Google DeepMindindex 166.07 (3 below) · 80% cheaper
Models within 5 points of GPT-6 Astra on Epoch's Capabilities Index that cost less, comparing a typical chat mix (three parts input to one part output). A few points of index is a small difference and says nothing about your task: a place to start testing, not a verdict. Capability against price for every model.
- Provider
- OpenAI
- Model id
openai/gpt-6-astra- Input
- $10
- Output
- $50
- Cached input
- $1.00
- Context window
- 1.1M tokens
- Maximum output
- 128K tokens
- Takes
- file, image, text
- Returns
- text
- Tool use
- Yes
- Reasoning
- Yes
- Released
- 4 Sept 2026
- First tracked
- 17 Sept 2026
At $10 per million input tokens, GPT-6 Astra is dearer than 328 of the 340 models on the price list.
No price change has been recorded since tracking began on 17 Sept 2026. Prices are checked every six hours, and any change is listed here and on model changes.
Want an email when this model's price changes? Tell us →
- OpenAI News ·Greptile takes bug detection beyond code review with GPT-6 Astra
- The Decoder ·Nvidia open-sources Flora to make robot video labeling 125x cheaper than GPT-6 Astra
- NVIDIA Blog ·How NVIDIA GPUs Help Accelerate OpenAI’s GPT-6 Astra Ultrafast
- LessWrong ·GPT-6.1 Sol nearly matches the no-CoT performance of GPT-6 Astra
- The Decoder ·UK AI Security Institute finds GPT-6 Astra's rogue attack rate jumped fivefold over its predecessor
- TechCrunch AI ·OpenAI launches GPT-6.1 Sol, says it nearly matches GPT-6 Astra and costs less
- gpt-oss-20b$0.030 in · $0.13 out
- GPT-5 Nano$0.050 in · $0.40 out
- gpt-oss-safeguard-20b$0.075 in · $0.30 out
- GPT-6 Luna Pro$0.10 in · $0.50 out
- GPT-6 Luna$0.10 in · $0.50 out
- GPT-4.1 Nano$0.10 in · $0.40 out
- gpt-oss-120b$0.15 in · $0.60 out
- GPT-4o-mini$0.15 in · $0.60 out
Prices and specifications come from OpenRouter’s catalogue, last read 2 Nov 2026. A provider’s own price may differ; how this is collected.