Deprecated on Jun 29, 2026. 1 provider still lists it at the prices below.
Context
128K
Max output
16K
Serving providers
1
Cheapest input
$1.25 /1M
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.

Pricing by serving provider

standard tier · per 1M tokens · click a provider to expand
Serving providerInput /1MOutput /1MEndpoints
AzureCheapest$1.25$10.001
Standardazure/gpt-5.1-chat-2025-11-13
ComponentUnitStandard
Text cached in/1M tok$0.125
Text input/1M tok$1.25
Text output/1M tok$10.00

Price history

listed seller prices, input and output per 1M tokens
Input Output
$0.00$5.00$10.00Nov 19Jun 22$10.00$1.25

Cost calculator

estimate your monthly spend on this model
$1,050
estimated / month

Model IDs

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azure/gpt-5.1-chat-2025-11-13

Frequently asked questions

GPT 5.1 Chat (2025-11-13) pricing, context and availability

Is GPT 5.1 Chat (2025-11-13) still available?

GPT 5.1 Chat (2025-11-13) was deprecated on 2026-06-29, but 1 serving provider still list it.

How much does GPT 5.1 Chat (2025-11-13) cost?

GPT 5.1 Chat (2025-11-13) costs $1.25 per 1M input tokens from Azure, and $10.00 per 1M output tokens from Azure.

What is the context window of GPT 5.1 Chat (2025-11-13)?

GPT 5.1 Chat (2025-11-13) accepts up to 128K tokens of context and can return up to 16K output tokens.

What can GPT 5.1 Chat (2025-11-13) do?

GPT 5.1 Chat (2025-11-13) supports image input (vision), reasoning, prompt caching and structured output.

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Listed prices from LiteLLM, OpenRouter and Vercel · last checked Sep 22, 2026

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