Changelog / release

0.11.5 — DeepSeek V4 Flash 0731, and a canary for bad output

Upgrade: pip install -U rapid-mlx · brew upgrade rapid-mlx · or grab the desktop app.

DeepSeek V4 Flash 0731 is served. The 0731 checkpoint gets a first-class alias, deepseek-v4-flash-0731-mxfp4 — the most capable open-weights model in the registry, and the cheapest 50-point model on the Artificial Analysis index (PR #1364). Serving it took three follow-ups: mixed-length batches (PR #1365), a stabilization pass (PR #1369), and making prefix reuse actually engage on V4 (PR #1371), where it had been silently doing nothing.
DeepSeek DSML markup no longer leaks into Responses streams (PR #1373).
An output-quality canary. Request telemetry can carry output_degenerate, a boolean computed locally that flags runaway repetition — so a bad quantization surfaces as a version-scoped spike instead of scattered bug reports. The check runs on your machine and only its yes/no answer is sent; no prompt, no completion (PR #1250, #1266). Documented on the telemetry page.
Small-model GPU smoke on free CI runners — coherence plus tool-calling on Qwen and Llama, catching the cheapest class of regression without waiting for the Studio.