NEWS · MODELS · #445
Mistral launches Medium 3.5 (128B) open-weights in public preview and adds cloud remote agents to Vibe/Le Chat
Mistral Medium 3.5, a 128B dense ‘merged’ model with a 256k context window and open weights under a modified MIT license, is available in public preview and becomes the default in Le Chat and Vibe coding flows. The update also introduces cloud remote agents for Mistral Vibe and a new Work mode in Le Chat for multi-step tool-driven tasks; pricing is $1.5 per million input tokens and $7.5 per million output tokens, and the model claims strong benchmark and agentic scores (e.g., 77.6% SWE-Bench Verified).
KEY POINTS
- Mistral Medium 3.5, a 128B dense ‘merged’ model with a 256k context window and open weights under a modified MIT license, is available in public preview and becomes the default in Le Chat and Vibe coding flows.
- The update also introduces cloud remote agents for Mistral Vibe and a new Work mode in Le Chat for multi-step tool-driven tasks; pricing is $1.5 per million input tokens and $7.5 per million output tokens, and the model claims strong benchmark and agentic scores (e.g., 77.6% SWE-Bench Verified).
- This pairs an open-weight, long-context 128B model with cloud async coding agents, enabling developers to offload parallel, long-horizon coding and tool-driven workflows while keeping human review.
WHY IT MATTERS
This pairs an open-weight, long-context 128B model with cloud async coding agents, enabling developers to offload parallel, long-horizon coding and tool-driven workflows while keeping human review.