Skip to content
  • Models
  • Rankings
  • Ori
Sign Up
Sign Up
OpenRouterOpenRouter
© 2026 OpenRouter, Inc

Product

  • Chat
  • Rankings
  • Benchmarks
  • Apps
  • Discover
  • Models
  • Collections
  • Providers
  • Pricing
  • Business
  • Enterprise
  • Labs

Company

  • About
  • Blog
  • Careers
    Hiring
  • Privacy
  • Terms of Service
  • Trust Center
  • Support
  • Works With OR
  • Data
  • Brand

Developer

  • Documentation
  • API Reference
  • Developer Platform
  • Status

Connect

  • Discord
  • GitHub
  • LinkedIn
  • X
  • YouTube
  1. Home
  2. /
  3. Compare

Gemini 3.5 Flash vs Sonar Pro Search

Compare Gemini 3.5 Flash from Google and Sonar Pro Search from Perplexity on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

Favicon for google
Gemini 3.5 Flash
Favicon for perplexity
Sonar Pro Search
Favicon for google
Gemini 3.5 Flash
Favicon for perplexity
Sonar Pro Search

Overview

Gemini 3.5 Flash
Author
Google
Sonar Pro Search
Author
Perplexity
Gemini 3.5 Flash
Context length
1.05Mtokens
Sonar Pro Search
Context length
200Ktokens
Gemini 3.5 Flash
Reasoning
Sonar Pro Search
Reasoning
Gemini 3.5 Flash
Input modalities
Sonar Pro Search
Input modalities
Gemini 3.5 Flash
Output modalities
Sonar Pro Search
Output modalities

Gemini 3.5 Flash vs Sonar Pro Search: side-by-side summary

Gemini 3.5 Flash and Sonar Pro Search are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Gemini 3.5 Flash, from Google, has a 1,048,576-token context window and is priced at $1.50/M tokens input, $9/M tokens output on OpenRouter.

Sonar Pro Search, from Perplexity, has a 200,000-token context window and is priced at $3/M tokens input, $15/M tokens output on OpenRouter.

Context window
  • Gemini 3.5 Flash: 1,048,576 tokens
  • Sonar Pro Search: 200,000 tokens
Price
  • Gemini 3.5 Flash: $1.50/M tokens input, $9/M tokens output
  • Sonar Pro Search: $3/M tokens input, $15/M tokens output
Provided by
  • Gemini 3.5 Flash: Google
  • Sonar Pro Search: Perplexity
  • model details, providers and pricing
Gemini 3.5 Flash
model details, providers and pricing
Sonar Pro Search