Model page
Qwen 3.6 Plus
Alibaba's flagship closed Qwen model via Fireworks. 396B MoE with function calling and image input support. Available serverless on just4o.chat at the base tier. Uses 2 base requests per send before length multipliers. Does not support web search.
Key dates
We use concrete dates and keep them consistent across the site.
Modalities
Input and output
Input: Text, Image
Output: Text
Features
Availability notes
Cached input: $0.10 / 1M tokens · 2 base requests per send before length multipliers · Function calling supported · Dedicated Fireworks deployments are available separately
ChatGPT
GPT‑4o retirement (ChatGPT)
OpenAI is retiring GPT‑4o inside ChatGPT on February 13, 2026. This does not automatically imply API removal.