GPT-5.1 Chat
gpt-codex
Chat-tuned GPT-5.1 for polished assistants, writing, and product conversations
ReasoningTool CallingAttachmentsStructured Output
Context Window
128K
Max Output
16K
Temperature
No
Open Weights
No
Knowledge Cutoff
2024-09-30
Released
2025-11-13
Last Updated
2025-11-13
Modalities
Input:TextImage
→Output:Text
Available Providers (2)
| Provider | Input /1M | Output /1M | Cache Read /1M | Cache Write /1M | Reasoning | Status |
|---|---|---|---|---|---|---|
 Merge Gateway | Rp 22.371 | Rp 178.964 | Rp 2.238 | — | ✓ | — |
 OrcaRouter | Rp 22.371 | Rp 178.964 | Rp 2.238 | — | ✓ | — |