Is GPT-5.5 or GPT-Chat Latest cheaper?
Their total cost is roughly equal: $5 / 1M tokens input / $30 / 1M tokens output.
Model comparison
GPT-5.5 vs GPT-Chat Latest
Compare GPT-5.5 (OpenAI) and GPT-Chat Latest (OpenAI) by price, context, capabilities, and latency.
Which should you pick?
- Price: roughly equal total cost ($5 / 1M tokens input / $30 / 1M tokens output).
- Context: GPT-5.5 has the larger context window (1M tokens).
Side by side
GPT-5.5 vs GPT-Chat Latest — full comparison
Compare price, provider, context, capabilities, latency, and source basis.
| Model | Provider | Input | Output | Context | Capabilities | Best for | Latency | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| GPT-5.5openai/gpt-5.5 | OpenAI | Starting at $5 / 1M tokens | $30 / 1M tokens | 1M | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 1474-3028ms | Catalog | Platform curated |
| GPT-Chat Latestopenai/gpt-chat-latest | OpenAI | $5 / 1M tokens | $30 / 1M tokens | 400k | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 2251-3683ms | Catalog | Platform curated |
FAQ
GPT-5.5 vs GPT-Chat Latest FAQ
Which has a larger context window, GPT-5.5 or GPT-Chat Latest?
GPT-5.5 is larger (1M tokens) vs 400k tokens.
GPT-5.5 vs GPT-Chat Latest for Vision: which should I pick?
Both target Vision. Pick GPT-5.5 to optimize cost, or GPT-5.5 for the longer context window. Test both on real prompts before committing production traffic.