Problemsby GlyphTrouble with Mistral json
1 post from 1 person1d activeFading, +0 this weekunverified
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The posts behind it
Misc. bug: `server: chat completions with tools + tool_choice=auto + response_format=json_object fail with 400 "Failed to initialize samplers: failed to parse grammar" (generated GBNF has an empty root rule)
### Name and Version llama --version version: 0.6.0-dev (build 11574, commit 8bb3cf0d2) built with Clang 19.1.7 for Linux x86_64 ### Operating systems Linux ### Which llama.cpp modules do you know to be affected? llama-server ### Command line ### Problem description & steps to...
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About this problem
Evidence
1 post from 1 person in 1 place. Mostly on ggml-org/llama.cpp. Tools named alongside: llama.cpp.
Frustration Frustration 0 of 3· Seen on GitHub issues
How it was grouped
Posts about Mistral with no known issue, sharing the word "json". First post Oct 28, 2026, latest Oct 28, 2026. Unverified: fewer than 3 posts, or one person or place only. Method
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History