GPT-4o vs Claude Sonnet 4

Side-by-side comparison of pricing, features, and capabilities

Pricing

Input / 1M tokens
$2.50
$3.00
Output / 1M tokens
$10.00
$15.00
Avg. Cost / 1M
$6.25
$9.00

Specifications

Context Window
128K
200K
Tier
frontier
high
Provider
OpenAI
Anthropic

Capabilities

Feature
gpt-4o
claude-sonnet-4
text
code
vision
long context

Verdict

Best for Cost

gpt-4o is 44% cheaper on average

Best for Quality

gpt-4o (frontier tier) is positioned as higher quality

Best for Long Documents

claude-sonnet-4 has a larger context window (200K)

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