Omibox

Claude 3.5 SonnetVSGemini 1.5 Pro

Claude 3.5 Sonnet

Claude 3.5 Sonnet

Claude 3.5 Sonnet AI Model

Read Full Review
VS
Gemini 1.5 Pro

Gemini 1.5 Pro

Gemini 1.5 Pro AI Model

Read Full Review

Select Your Role for Personalized Verdict

casual Verdict

These two are neck-and-neck industry leaders. [Claude](/lab?model=anthropic/claude-3.5-sonnet) 3.5 Sonnet (Elo 1272) and [Gemini](/lab?model=google/gemini-flash-1.5) 1.5 Pro (Elo 1261) are practically indistinguishable in daily tasks.
Data Verified from Authority Sources

Benchmarks including **LMSYS Chatbot Arena Elo** and **HumanEval Pass@1** are sourced from public leaderboards as of **2025/2026**. These metrics are indicative and may change as models are updated by providers.

LMSYS Leaderboard HumanEval Benchmark

Scores based on normalized benchmarks (0-100 scale)

Feature Comparison

FeatureClaude 3.5 SonnetGemini 1.5 Pro
ProviderAnthropicGoogle
Release Date2024-062024-04
Context Window2000002000000
Pricing (Input)3 / per 1M tokens3.5 / per 1M tokens
Pricing (Output)15 / per 1M tokens10.5 / per 1M tokens
Pros
  • Superior coding and debugging capabilities (Artifacts UI)
  • More natural, human-like writing style
  • Massive 200k context window with perfect recall
  • Unmatched 2 Million token context window
  • Deep integration with Google Workspace ecosystem
  • Excellent at retrieving needle-in-a-haystack data
Cons
  • Lacks native web search capability (uses tools)
  • Slightly slower than GPT-4o in short bursts
  • Can suffer from hallucinations in short-context logic
  • More aggressive safety filters than competitors

Methodology

We compared Claude 3.5 Sonnet and Gemini 1.5 Pro based on real-world usage tests, official technical benchmarks, and community feedback. Our scoring system evaluates speed, reasoning capabilities (MMLU benchmarks), and coding proficiency.

Last updated: 1/17/2026