Calculate the cost of using gpt-5.1-chat from Azure for your AI applications
Pricing data last updated:
Mode: Chat
Max: 128,000 tokens
Max: 128,000 tokens
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gpt-5.1-chat is a chat model from Azure, one of 202 chat models they offer. It is priced at $1.38 per 1M input tokens and $11.00 per 1M output tokens, ranking 2032 out of 2788 chat models by cost and cheaper than 27% of models in this category. gpt-5.1-chat supports vision, function calling, reasoning, prompt caching, structured output. It accepts up to 128K input tokens.
Note: Use the interactive calculator above to estimate costs for your specific usage patterns.
Use the maximum token limits shown above to understand the model's capacity. This model can handle up to 128,000 input tokens. The maximum output length is 128,000 tokens.
At $1.38 per 1M input tokens and $11.00 per 1M output tokens, gpt-5.1-chat ranks 2032 out of 2788 chat models by input cost. It is more expensive compared to the median of $0.55 for chat models, and is cheaper than 27% of models in this category.
gpt-5.1-chat is one of 202 Azure chat models, with support for vision, function calling, reasoning, prompt caching, structured output.
| Model | Provider | Input / 1M tokens | Output / 1M tokens | vs gpt-5.1-chat |
|---|---|---|---|---|
| gemini-2.5-pro | Vertex AI | $1.25 | $10.00 | -9% |
| gemini-3.5-flash | Vertex AI | $1.50 | $9.00 | +9% |
| gemini-3.6-flash | Vertex AI | $1.50 | $7.50 | +9% |
Similar chat models from other providers
No. gpt-5.1-chat costs $1.38 per 1M input tokens while gemini-2.5-pro costs $1.25 per 1M input tokens, making gemini-2.5-pro 9% more affordable for input. However, gpt-5.1-chat may offer different capabilities or performance characteristics that justify the price difference.
gpt-5.1-chat input pricing is $1.38 per 1M tokens, which is 153% above the median of $0.55 for chat models. It ranks 2032 out of 2788 chat models by input cost, making it cheaper than 27% of models in this category. For output, it costs $11.00 per 1M tokens compared to the median of $1.50.
Among Azure's 202 chat models, gpt-5.1-chat ranks 103 by input cost.
The most comparable chat models to gpt-5.1-chat are: gemini-2.5-pro from Vertex AI ($1.25/1M input tokens); gemini-3.5-flash from Vertex AI ($1.50/1M input tokens); gemini-3.6-flash from Vertex AI ($1.50/1M input tokens); gemini-flash-latest from Google Gemini ($1.50/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.
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gpt-5.1-chat is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $1.38 and generating 1M output tokens costs $11.00.