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Gemini 3.1 Flash Lite vs Grok 4.3

Compare Gemini 3.1 Flash Lite from Google and Grok 4.3 from SpaceXAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

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Gemini 3.1 Flash Lite vs Grok 4.3: side-by-side summary

Gemini 3.1 Flash Lite and Grok 4.3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Gemini 3.1 Flash Lite, from Google, has a 1,048,576-token context window and is priced at $0.25/M tokens input, $1.50/M tokens output on OpenRouter.

Grok 4.3, from SpaceXAI, has a 1,000,000-token context window and is priced at $1.25/M tokens input, $2.50/M tokens output on OpenRouter.

Context window
  • Gemini 3.1 Flash Lite: 1,048,576 tokens
  • Grok 4.3: 1,000,000 tokens
Price
  • Gemini 3.1 Flash Lite: $0.25/M tokens input, $1.50/M tokens output
  • Grok 4.3: $1.25/M tokens input, $2.50/M tokens output
Provided by
  • Gemini 3.1 Flash Lite: Google
  • Grok 4.3: SpaceXAI
Favicon for google
Gemini 3.1 Flash Lite
Favicon for x-ai
Grok 4.3
Favicon for google
Gemini 3.1 Flash Lite
Favicon for x-ai
Grok 4.3

Overview

Gemini 3.1 Flash Lite
Author
Google
Grok 4.3
Author
SpaceXAI
Gemini 3.1 Flash Lite
Context length
1.05Mtokens
Grok 4.3
Context length
1Mtokens
Gemini 3.1 Flash Lite
Reasoning
Grok 4.3
Reasoning
Gemini 3.1 Flash Lite
Input modalities
Grok 4.3
Input modalities
Gemini 3.1 Flash Lite
Output modalities
Grok 4.3
Output modalities
model details, providers and pricing
model details, providers and pricing
Gemini 3.1 Flash Lite
Grok 4.3