GPT-5.1-chat
GPT-5.1-chat is a text model from 
Azure OpenAI with a context window of 128K tokens and max output of 16K tokens. Pricing starts at 1.25 per million input tokens and 10.00 per million output tokens (cheapest at Databricks).
Capabilities
✓ Vision✗ Function Calling✓ Reasoning✓ JSON Schema✓ System Messages✗ Web Search✓ Prompt Caching✗ Audio Input✗ Audio Output
Specifications
| Model Key | azure/gpt-5.1-chat-2025-11-13 |
| Provider | Azure OpenAI |
| Provider ID | azure |
| Mode | Text |
| Canonical Name | gpt-5.1 |
| Context Window | 128K tokens |
| Max Output | 16K tokens |
Pricing
| Type | Per 1K Tokens | Per 1M Tokens |
|---|---|---|
| Input Tokens | 0.0013 | 1.25 |
| Output Tokens | 0.010 | 10.00 |
| Cache Read (Input) | 0.000125 | 0.125 |
Price Comparison by Provider
Compare prices for GPT-5.1-chat across different providers. The same model may be available through multiple providers at different price points.
Provider | Model Key | Input Price, $ | Output Price, $ |
|---|---|---|---|
 Perplexity | perplexity/openai/gpt-5.1 | N/A | N/A |
 OpenAI | gpt-5.1 | 1.25 | 10.00 |
 GMI Cloud | gmi/openai/gpt-5.1 | 1.25 | 10.00 |
 GitHub Copilot | github_copilot/gpt-5.1 | N/A | N/A |
 Databricks | databricks/databricks-gpt-5-1 | 1.25 | 10.00 |
| Azure OpenAI | azure/global/gpt-5.1 | 1.25 | 10.00 |
All Variants
All available versions, regions, and API endpoints for GPT-5.1-chat.
Model Key | Provider | Mode | Input Price, $ | Output Price, $ | Context | Max Output | Vision | Functions |
|---|---|---|---|---|---|---|---|---|
| azure/eu/gpt-5.1 | Azure OpenAI | Text | 1.38 | 11.00 | 272K | 128K | yes | yes |
| azure/eu/gpt-5.1-chat | Azure OpenAI | Text | 1.38 | 11.00 | 128K | 128K | yes | yes |
| azure/global/gpt-5.1 | Azure OpenAI | Text | 1.25 | 10.00 | 272K | 128K | yes | yes |
| azure/global/gpt-5.1-chat | Azure OpenAI | Text | 1.25 | 10.00 | 128K | 128K | yes | yes |
| azure/gpt-4.1 | Azure OpenAI | Text | 2.00 | 8.00 | 1.0M | 33K | yes | yes |
| azure/gpt-4.1-2025-04-14 | Azure OpenAI | Text | 2.00 | 8.00 | 1.0M | 33K | yes | yes |
| azure/gpt-5.1 | Azure OpenAI | Text | 1.25 | 10.00 | 272K | 128K | yes | yes |
| azure/gpt-5.1-2025-11-13 | Azure OpenAI | Text | 1.25 | 10.00 | 272K | 128K | yes | yes |
| azure/gpt-5.1-chat | Azure OpenAI | Text | 1.25 | 10.00 | 128K | 128K | yes | yes |
| azure/gpt-5.1-chat-2025-11-13 | Azure OpenAI | Text | 1.25 | 10.00 | 128K | 16K | yes | no |
| azure/us/gpt-5.1 | Azure OpenAI | Text | 1.38 | 11.00 | 272K | 128K | yes | yes |
| azure/us/gpt-5.1-chat | Azure OpenAI | Text | 1.38 | 11.00 | 128K | 128K | yes | yes |
| databricks/databricks-gpt-5-1 | Databricks | Text | 1.25 | 10.00 | 272K | 128K | no | no |
| github_copilot/gpt-5.1 | GitHub Copilot | Text | N/A | N/A | 128K | 64K | yes | yes |
| gmi/openai/gpt-5.1 | GMI Cloud | Text | 1.25 | 10.00 | 410K | 32K | no | yes |
| gpt-5.1 | OpenAI | Text | 1.25 | 10.00 | 272K | 128K | yes | yes |
| gpt-5.1-2025-11-13 | OpenAI | Text | 1.25 | 10.00 | 272K | 128K | yes | yes |
| gpt-5.1-chat-latest | OpenAI | Text | 1.25 | 10.00 | 128K | 16K | yes | no |
| perplexity/openai/gpt-5.1 | Perplexity | Other | N/A | N/A | N/A | N/A | no | yes |