Best Google Models for RAG
The best Google model for RAG is Gemini 3.5 Flash — 50.2 intelligence with 1.0M tokens of context for retrieved passages. Gemini 3.6 Flash (50.1) and Gemini 3.1 Pro Preview (46.5) round out the top three.
The best AI models for retrieval-augmented generation, ranked by intelligence among models with at least 128K tokens of context — enough to hold retrieved passages plus conversation. RAG pipelines run at volume, so weigh the price and speed columns as hard as the score.
- 1
gemini-3.5-flashReasoningToolsJSON+250.2 intel · $1.50/M · 1.0M ctx50.2Intelligence - 2gemini-3.6-flashReasoningToolsJSON+250.1 intel · $1.50/M · 1.0M ctx50.1Intelligence
- 3gemini-3.1-pro-previewReasoningToolsJSON+246.5 intel · $2.00/M · 1.0M ctx46.5Intelligence
- 4gemini-3.5-flash-liteReasoningToolsJSON+236.5 intel · $0.300/M · 1.0M ctx36.5Intelligence
- 5gemini-2.5-proReasoningToolsJSON+225.8 intel · $1.25/M · 1.0M ctx25.8Intelligence
- 6gemini-3.1-flash-liteReasoningToolsJSON+225.0 intel · $0.250/M · 1.0M ctx25.0Intelligence
- 7gemini-3.1-flash-lite-previewReasoningToolsJSON+225.0 intel · $0.250/M · 1.0M ctx25.0Intelligence
- 8gemini-2.5-flashReasoningToolsJSON+214.1 intel · $0.300/M · 1.0M ctx14.1Intelligence
- 9gemini-2.5-flash-liteReasoningToolsJSON+26.9 intel · $0.100/M · 1.0M ctx6.9Intelligence
Frequently asked
What is the best Google model for RAG?
The best Google model for RAG is Gemini 3.5 Flash — 50.2 intelligence with 1.0M tokens of context for retrieved passages. Gemini 3.6 Flash (50.1) and Gemini 3.1 Pro Preview (46.5) round out the top three.
What's a good alternative to Gemini 3.5 Flash?
Gemini 3.6 Flash (50.1) is the closest alternative on this metric, followed by Gemini 3.1 Pro Preview (46.5). See the full ranking above for the tradeoffs.
How many Google models are there?
modelgrep tracks 30 Google models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by Gemini 3.5 Flash. 9 of them qualify for this ranking.