GPT-6 Astra
OpenAIUpdated October 2026. GPT-6 Astra by OpenAI: $10.00/M cache-miss input, $50.00/M output tokens. Cached input: $1.00/M. Explicit cache writes: $12.50/M. Long-context pricing at or above 272K input tokens: $20.00/M input, $75.00/M output. 1.1M context, 128K max output. Vision & Function Calling. Free calculator + compare 40+ models.
Input Price
$10.00
cache miss / 1M tokens
Cached Input
$1.00
per 1M tokens
Output Price
$50.00
per 1M tokens
Context Window
1.1M
tokens
Specifications
| Provider | OpenAI |
| Model ID | gpt-6-astra |
| Input Price | $10.00 / 1M cache-miss tokens |
| Cached Input Price | $1.00 / 1M tokens |
| Explicit Cache Write Price | $12.50 / 1M tokens |
| Output Price | $50.00 / 1M tokens |
| Long Context Threshold | 272K input tokens |
| Long Context Pricing | $20.00 / 1M cache-miss input, $2.00 / 1M cached input, $25.00 / 1M explicit cache writes, $75.00 / 1M output |
| Context Window | 1.1M tokens |
| Max Output | 128K tokens |
| Capabilities | textvisionfunction_callingstructured_output |
| Release Date | 2026-09-03 |
| Pricing Source | Official OpenAI pricing |
| Price Verified | 2026-10-02 · GPT-6.1 Sol is $2/$10 with $0.10/M cached input (half GPT-6 Sol). GPT-6 Astra also offers Ultrafast at 6x Standard. GPT-5.6 Sol promotional $4/$20 pricing lasts at least through 2026-11-21. |
| Notes | OpenAI's highest-capability GPT-6 model for hard end-to-end work. Prompts above 272K input tokens bill the entire request at long-context rates; Batch and Flex cost 50% of Standard, while Fast mode costs 2x. Ultrafast mode costs 6x Standard: $60/$300 at short context or $120/$450 above 272K input tokens. |
Monthly Cost Estimates
Estimated monthly costs based on different daily usage levels (assuming 50% input / 50% output split). Input estimates use cache-miss pricing, so cache-heavy workloads can be lower.
| Daily Tokens | Monthly Cost | Annual Cost |
|---|---|---|
| 10K | $9.00 | $108.00 |
| 50K | $45.00 | $540.00 |
| 100K | $90.00 | $1080.00 |
| 500K | $450.00 | $5400.00 |
| 1.0M | $900.00 | $10800.00 |
About GPT-6 Astra
GPT-6 Astra is a large language model by OpenAI. It features a 1.1M token context window with up to 128K tokens of output per request. The model supports 4 capabilities: text, vision, function_calling, structured_output.
At $10.00 per million cache-miss input tokens and $50.00 per million output tokens, GPT-6 Astra is positioned as a premium option in the OpenAI lineup. Repeated prefix input can be charged at $1.00 per million cached tokens. Use our Token Counter to estimate how many tokens your prompts use, and our Pricing Calculator to compare costs across all models.
GPT-6 Astra Key Details
- Pricing: $10.00/M cache-miss input tokens, $1.00/M cached input tokens, $12.50/M explicit cache writes, $50.00/M output tokens
- Context window: 1.1M tokens — one of the largest available
- Max output: 128K tokens per response
- Capabilities: text, vision, function_calling, structured_output
- Highlights: OpenAI's highest-capability GPT-6 model for hard end-to-end work. Prompts above 272K input tokens bill the entire request at long-context rates; Batch and Flex cost 50% of Standard, while Fast mode costs 2x. Ultrafast mode costs 6x Standard: $60/$300 at short context or $120/$450 above 272K input tokens.
- Released: 2026-09-03
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FAQ
How much does GPT-6 Astra cost?
GPT-6 Astra costs $10.00 per million cache-miss input tokens and $50.00 per million output tokens. Cached input costs $1.00 per million tokens. For a typical workload of 100K input tokens/day and 50K output tokens/day, expect approximately $105.00/month before cache-hit savings.
What is GPT-6 Astra's context window?
GPT-6 Astra supports a context window of 1.1M tokens. This means your combined input prompt and output response can be up to 1.1M tokens. The maximum output per response is 128K tokens.
Is GPT-6 Astra good for my use case?
GPT-6 Astra supports text, vision, function_calling, structured_output. As a premium model, it excels at complex reasoning, coding, and tasks requiring maximum quality. Use our Pricing Calculator to compare with alternatives.