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RetiredOPOpenAI/ GPT

GPT-5.1 Chat

openai/gpt-5.1-chat-latest

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

Compare

Model information

Released
2025-11-13
Context window
128K
Max output
16K
Weights
Closed

Modalities

Input
ImageText
Output
Text

Identity

Version
gpt-5.1-chat-latest
Knowledge cutoff
2024-09-30
Aliases
GPT-5.1 Chat

Capabilities

AttachmentsReasoningStructuredTool call

Providers

ProviderProvider model IDProtocolContextMax outputInputOutputCapabilitiesNotesPricingStreaming
302.AIgpt-5.1-chat-latestopenai_chat128K16K
AttachmentsReasoningTool callStructured
-
input $1.25/M · output $10/M
Yes
Heliconegpt-5.1-chat-latestopenai_chat128K16K
Tool call
-
input $1.25/M · output $10/M
cache read $0.125/M
Yes
Abacusgpt-5.1-chat-latestopenai_chat128K16K
AttachmentsReasoningTool call
-
input $1.25/M · output $10/M
Yes
OrcaRouteropenai/gpt-5.1-chat-latestopenai_chat128K16K
AttachmentsReasoningTool callStructured
-
input $1.25/M · output $10/M
cache read $0.125/M
Yes
Merge Gatewayopenai/gpt-5.1-chat-latestopenai_chat128K16K
AttachmentsTool callStructured
-
input $1.25/M · output $10/M
cache read $0.125/M
Yes
OpenAIgpt-5.1-chat-latestcustom128K16K
---Yes

FAQ