ollama - 💡(How to fix) Fix mistral-medium-3.5:128b system prompt incorrectly identifies as Mistral-Small-4-119B-2603 [1 participants]

What is the issue?

The mistral-medium-3.5:128b Modelfile ships with a SYSTEM prompt that identifies the model as "Mistral-Small-4-119B-2603" — a completely different model architecture (MoE, 128 experts, ~119B params) than Mistral Medium 3.5 (dense, 128B params).

Visible via:

ollama show mistral-medium-3.5:128b

Under "System":

You are Mistral-Small-4-119B-2603, a Large Language Model (LLM) created by Mistral AI...

Also confirmed via ollama show mistral-medium-3.5:128b --modelfile.

Why this matters

Users performing model provenance verification see a model self-identifying as a different architecture than what's listed on the registry. This creates a trust/supply chain concern — especially for anyone validating that the model they pulled is the model they intended to run.

Steps to reproduce

1. ollama pull mistral-medium-3.5:128b
2. ollama show mistral-medium-3.5:128b
3. Observe SYSTEM prompt references "Mistral-Small-4-119B-2603" instead of Mistral Medium 3.5

Environment

• Ollama version: latest (as of May 2026)
• OS: macOS (Apple Silicon)
• The model weights appear correct (127.7B params, Q4_K_M, 80GB) — this appears to be a Modelfile template packaging error only.