Omibox

GPT-4oVSClaude 3.5 Sonnet

GPT-4o

GPT-4o

GPT-4o AI Model

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VS
Claude 3.5 Sonnet

Claude 3.5 Sonnet

Claude 3.5 Sonnet AI Model

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casual Verdict

These two are neck-and-neck industry leaders. [GPT-4o](/lab?model=openai/gpt-4o) (Elo 1287) and [Claude](/lab?model=anthropic/claude-3.5-sonnet) 3.5 Sonnet (Elo 1272) 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

FeatureGPT-4oClaude 3.5 Sonnet
ProviderOpenAIAnthropic
Release Date2024-052024-06
Context Window128000200000
Pricing (Input)5 / per 1M tokens3 / per 1M tokens
Pricing (Output)15 / per 1M tokens15 / per 1M tokens
Pros
  • Industry-leading multimodal capabilities (Audio/Vision)
  • Extremely fast inference speed compared to GPT-4 Turbo
  • Native capability to understand emotion in voice
  • Superior coding and debugging capabilities (Artifacts UI)
  • More natural, human-like writing style
  • Massive 200k context window with perfect recall
Cons
  • Can be 'lazy' in coding tasks requiring complex scaffolding
  • Strict safety filters can trigger false refusals
  • Lacks native web search capability (uses tools)
  • Slightly slower than GPT-4o in short bursts

Methodology

We compared GPT-4o and Claude 3.5 Sonnet 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