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FrontierThe story, in brief

Gemma 4 gets a stealth update that fixes tool calling bugs and truncated responses under the same name

Google quietly patched Gemma 4. Tool calling bugs fixed, truncated responses gone, Hopper performance +X%.

Reporting by The Decoder 1 min brief
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The KeyNews take

Why it matters

Google's stealth update to Gemma 4 addresses critical production issues (tool calling, truncation) without version bump—a sign of either rapid iteration pressure or under-the-radar fixes that enterprises relying on the model need to know about.

The key facts

10 to know

  1. Gemma 4 received unversioned update

  2. Fixed tool calling bugs

  3. Fixed truncated response issues

  4. Performance improvements on Nvidia Hopper GPUs

  5. Update shipped under same model name (version bump not transparent)

  6. Gemma 4 updated with tool calling bug fixes

  7. Truncated response issues resolved

  8. Nvidia Hopper GPU performance improvements

  9. Update released under same model name (versioning risk for users)

  10. Published July 16, 2026

Go to the source

The Decoderthe-decoder.com

Publisher excerpt: Google shipped an update to its open AI model Gemma 4 that speeds up performance on Nvidia Hopper GPUs, fixes tool calling bugs, and addresses problems with truncated responses.
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