Is GPT-5.1 or GPT-5.1 Codex cheaper?
Their total cost is roughly equal: $1.25 / 1M tokens input / $10 / 1M tokens output.
Compare GPT-5.1 (OpenAI) and GPT-5.1 Codex (OpenAI) by price, context, capabilities, and latency.
Lado a lado
Compare preço, fornecedor, contexto, capacidades, latência e base da fonte.
| Model | Provider | Input | Output | Context | Capabilities | Best for | Latency | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| GPT-5.1openai/gpt-5.1 | OpenAI | $1.25 / 1M tokens | $10 / 1M tokens | 400k | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 2042-3635ms | Catalog | Platform curated |
| GPT-5.1 Codexopenai/gpt-5.1-codex | OpenAI | $1.25 / 1M tokens | $10 / 1M tokens | 400k | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 2044-3136ms | Catalog | Platform curated |
FAQ
Their total cost is roughly equal: $1.25 / 1M tokens input / $10 / 1M tokens output.
Both offer the same context window: 400k tokens.
Both target Vision. Pick GPT-5.1 to optimize cost, or GPT-5.1 for the longer context window. Test both on real prompts before committing production traffic.