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Model prices / OpenAI / GPT-5.1 Chat Latest

GPT-5.1 Chat Latest

OpenAI · released 2025-11-13

No price from the maker itself is on record for GPT-5.1 Chat Latest. The lowest of 6 providers is 302.AI: $1.25 per 1M input tokens and $10 per 1M output tokens (as of 2026-11-12). Context window: 128K tokens, up to 16.4K output tokens per request.

Price by providerUSD per 1M tokens

ProviderInputOutputCachedNotes
3302.AILowestgpt-5.1-chat-latest
$1.25$10—LowestOfficial docs
HHeliconegpt-5.1-chat-latest
$1.25$10$0.125Official docs
MMerge Gatewayopenai/gpt-5.1-chat-latest
$1.25$10$0.125Official docs
OOrcaRouteropenai/gpt-5.1-chat-latest
$1.25$10$0.125Official docs
PoeDeprecatedopenai/gpt-5.1-instant
$1.1$9$0.11DeprecatedOfficial docs
AAbacusDeprecatedgpt-5.1-chat-latest
$1.25$10—DeprecatedOfficial docs

Providers are those listed by models.dev. This site has not vetted them one by one; each provider's own page has the binding price.

About

Chat-tuned GPT-5.1 for polished assistants, writing, and product conversations

Description from models.dev.

Specs

Type
Text
Context
128K
Max output
16.4K
Input
Text, Image
Output
Text
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Knowledge cutoff
2024-09-30
Open weights
No
Released
2025-11-13

Source

Prices and specs come from models.dev (MIT licence), updated 2026-11-12. Each provider's name links to its official docs. A provider priced at 0 usually includes the model in a subscription; it is not necessarily a free API.