v3.6.1

Fixed

• Google (Gemini) batches that mix models now fail fast with a clear error at
  submit time, instead of silently running every request under the first line's
  model. Gemini applies one model per batch (it's set in the request URL), so a
  batch that mixes models is now rejected up front with a BatchException —
  before any request is sent. Split differing models into separate batches;
  OpenAI and Anthropic can still mix models freely.

Migration

No breaking changes — drop-in upgrade. No consumer action required.

Full Changelog: v3.6.0...v3.6.1