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OPOpenAI/ GPT

GPT-5.3-Codex

openai/gpt-5.3-codex

Coding-optimized GPT model for repository edits, reviews, and agentic software work

Compare

Model information

Released
2026-02-05
Context window
400K
Max output
128K
Weights
Closed

Modalities

Input
ImageText
Output
Text

Identity

Version
gpt-5.3-codex
Knowledge cutoff
2025-08-31
Aliases
GPT-5.3 Codex

Capabilities

AttachmentsReasoningStructuredTool call

Official price

input $1.75/M · output $14/M
cache read $0.175/M

Providers

ProviderProvider model IDProtocolContextMax outputInputOutputCapabilitiesNotesPricingStreaming
Poeopenai/gpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool call
-
input $1.6/M · output $13/M
cache read $0.16/M
Yes
Vivgridgpt-5.3-codexopenai_chat400K128K
ReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
NanoGPTopenai/gpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
FastRouteropenai/gpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
Yes
LLM Gatewaygpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
OpenCode Zengpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
GitHub Copilotgpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
Neongpt-5-3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
FrogBotgpt-5-3-codexopenai_chat400K128K
AttachmentsReasoningTool call
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
Pioneergpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M · cache write $1.75/M
Yes
ZenMuxopenai/gpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callTemperature
-
input $1.75/M · output $14/M
Yes
Abacusgpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.18/M
Yes
Azure Cognitive Servicesgpt-5.3-codexcustom400K128K
ReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
Azuregpt-5.3-codexopenai_responses400K128K
ReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
AIHubMixgpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
OrcaRouteropenai/gpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
FreeModelgpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M · cache write $1.75/M
Yes
Requestyopenai/gpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
Kilo Gatewayopenai/gpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
Vercel AI Gatewayopenai/gpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructuredTemperature
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
OpenRouteropenai/gpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
Moderated, Reasoning levels: xhigh, high, medium, low, none, Default reasoning: medium
input $1.75/M · output $14/M
cache read $0.175/M
Yes
Cloudflare AI Gatewayopenai/gpt-5.3-codexopenai_chat400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes
OpenAIgpt-5.3-codexopenai_responses400K128K
AttachmentsReasoningTool callStructured
-
input $1.75/M · output $14/M
cache read $0.175/M
Yes

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