name = "GPT-5.1 Codex mini" description = "Coding-optimized GPT model for repository edits, reviews, and agentic software work" family = "gpt-codex" release_date = "2025-11-13" last_updated = "2025-11-13" attachment = true reasoning = true temperature = false tool_call = true structured_output = true knowledge = "2024-09-30" open_weights = false [limit] context = 400_000 input = 272_000 output = 128_000 [modalities] input = ["text", "image"] output = ["text"]