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GPT-5.2 Codex

openai/gpt-5.2-codex

OpenAI / GPT

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Code-specialist GPT for repository edits, reviews, and long-running software agents

Released
2025-12-11
Context window
400K
Max output
128K
Weights
Closed
Modalities
TextInputImageInputDocumentInputTextOutput
Capabilities
AttachmentsReasoningTool callStructured
Providers
AbacusAIHubMixAzureAzure Cognitive ServicesCloudflare AI GatewayGitHub CopilotJiekou.AIKilo GatewayLLM GatewayNanoGPTNeonOpenCode ZenOpenRouterOrcaRouterPoeQiHangRequestyVercel AI GatewayVivgridZenMux

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