DSv4 Flash Tool Call Stability Issues at Long Context

captaintobs · reddit · 2026-08-21

A user running DSv4 Flash via jasl/vllm on 4 Spark instances reported that tool calls start failing (e.g., missing characters like '>') after about 100k context tokens. While the model offers high throughput (50 tps single, >100 tps aggregate), it lacks stability. GLM 5.2 is found more efficient and correct but significantly slower (25 tps).

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