reproduction: Google embedMany fails above 100 values when per-value

[ai-sdk-factory]

Bug

Google embedMany fails above 100 values when per-value content is provided

Reproduction

• The checked-out main commit and reported package versions match exactly: ai@7.0.106, @ai-sdk/google@4.0.75, and @ai-sdk/provider-utils@5.0.44; the reported Zod version satisfies their peer ranges.
• Added examples/ai-functions/src/reproduction/google-embed-many-content-batching.ts, covering 101 values with matching mixed null and per-value content entries.
• The reproduction expected all 101 embeddings in value/content index order, but observed rejection before any HTTP request: matching 101-entry content was compared with the first 100-value batch.
• packages/ai/src/embed/embed-many.ts slices values into provider-sized chunks while forwarding the unchanged providerOptions; packages/google/src/google-embedding-model.ts consequently rejects the unsliced content array.
• Controls confirmed that 100 values with content succeed, 101 text-only values batch successfully, and genuinely mismatched content remains rejected.

Relevant Documentation

• https://ai-sdk.dev/providers/ai-sdk-providers/google-generative-ai
• https://ai-sdk.dev/docs/reference/ai-sdk-core/embed-many
• https://ai.google.dev/api/embeddings

Related Issues

Reproduces #21095