This directory contains langchaingo provider for Google's models.

• In the main googleai directory: provider for Google AI (https://ai.google.dev/)
• In the vertex directory: provider for GCP Vertex AI (https://cloud.google.com/vertex-ai/)
• In the palm directory: provider for the legacy PaLM models.

Both the googleai and vertex providers give access to Gemini-family multi-modal LLMs. The code between these providers is very similar; therefore, most of the vertex package is code-generated from the googleai package using a tool:

go run ./llms/googleai/internal/cmd/generate-vertex.go < llms/googleai/googleai.go > llms/googleai/vertex/vertex.go

Testing:

The test code between googleai and vertex is also shared, and lives in the shared_test directory. The same tests are run for both providers.