GPT-6 Astra is OpenAI's language model with a 1.1M context window and up to 128K output tokens, starting at $10.00 / 1M input and $50.00 / 1M output. A general-purpose LLM offering enterprise-oriented capabilities with expanded reasoning and multimodal understanding for API and business platform use.
| Benchmarks | |
|---|---|
| Intelligence Index | #5 |
| Coding Index | #4 |
| GPQA | #1 |
| HLE | #4 |
| Time to First Token | #259 |
| SciCode | #19 |
| LCR | #38 |
| Output TPS | #492 |
Capabilities
Input3/5
Text✓
Image✓
Audio·
Video·
PDF✓
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities8/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling✓
Structured Outputs✓
Native JSON Schema✓
Web Search✓
URL Context·
Computer Use✓
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill·
Pricing by Provider
US Dollar ($)
Per 1M tokens
| Provider | Standard | Flex | Fast | Batch | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Cache Write 5m $ / 1M | Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Cache Write 5m $ / 1M | Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Cache Write 5m $ / 1M | Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | |
| $10.00 | $50.00 | $1.00 | $12.50 | $5.00 | $25.00 | $0.5 | $6.25 | $20.00 | $100.00 | $2.00 | $25.00 | $5.00 | $25.00 | $0.5 | |
Cost Calculator
US Dollar ($)
Preset:
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| GPT-5.6 Sol | 1.1M | $2.00 | $10.00 | Available | |
| GPT-5.6 Terra | 1.1M | $2.00 | $12.00 | Available | |
| GPT-5.6 Luna | 1.1M | $0.200 | $1.20 | Available | |
| GPT-5.5 | 1.1M | $5.00 | $30.00 | Available | |
| GPT-5.4 Mini | 400K | $0.750 | $4.50 | Available | |
| GPT-5.4 Nano | 400K | $0.200 | $1.25 | Available | |
| GPT-5.4 | 1.1M | $2.50 | $15.00 | Available | |
| GPT-5.3 Codex | 400K | $1.75 | $14.00 | Available | |
| GPT-5.2 Codex | 400K | $1.75 | $14.00 | Deprecated | |
| GPT-5.2 | 410K | $1.75 | $14.00 | Available | |
| GPT-6 Astra | — | 1.1M | $10.00 | $50.00 | Current |