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GPT-5.1 Chat

openai/gpt-5.1-chat-latest

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

Input modalitiesT
Output modalitiesT
Source-linkedgpt-codexClosed weightsReleased 2025-11-13
Report data
Context window128K
Maximum output16.384K
Provider offers7
Knowledge cutoff2024-09-30
Capabilities

What this model supports

ReasoningYes
Tool callingYes
Structured outputYes
AttachmentsYes
Temperature controlNo
Open weightsNo
Creator
OpenAI
Family
gpt-codex
Modalities
Image, Text
License
Not documented
Release date
2025-11-13
Model ID
openai/gpt-5.1-chat-latest
Market availability

Provider pricing

Report price →
Providers offering GPT-5.1 Chat
ProviderProvider model IDContextInput / 1MOutput / 1MCached / 1MFeaturesAll pricing
Azure logoAzuregpt-5.1-chat128K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Merge Gateway logoMerge Gatewayopenai/gpt-5.1-chat-latest128K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
OrcaRouter logoOrcaRouteropenai/gpt-5.1-chat-latest128K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
OpenAI logoOpenAIgpt-5.1-chat-latest128K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Requesty logoRequestyopenai/gpt-5.1-chat128K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
OpenRouter logoOpenRouteropenai/gpt-5.1-chat128K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.13 if offer.cost.cache_read is defined else '—'}}· T S
View
{
  "cache_read": 0.13,
  "input": 1.25,
  "output": 10
}
Azure Cognitive Services logoAzure Cognitive Servicesgpt-5.1-chat128K$1.25 if offer.cost.input is defined else '—'}}$10 if offer.cost.output is defined else '—'}}$0.125 if offer.cost.cache_read is defined else '—'}}R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Evidence

Published benchmark results

Insufficient benchmark coverage. ModelBench does not infer a score from price, context size, or model name.