Anthropic: Claude Sonnet 4.5 vs OpenAI: GPT-4.1

Side-by-side specs, pricing, and benchmarks. Pick a winner for your team's use case.

Anthropic: Claude Sonnet 4.5

Provider: anthropic
Context: 1000k
Input $/Mtok: $3.00
Output $/Mtok: $15.00
Max output: 64000
Modalities: text, image, file

OpenAI: GPT-4.1

Provider: openai
Context: 1048k
Input $/Mtok: $2.00
Output $/Mtok: $8.00
Max output: —
Modalities: image, text, file

Price delta

Anthropic: Claude Sonnet 4.5 is $1.00/Mtok more expensive than OpenAI: GPT-4.1 on input. Output delta: $7.00/Mtok.

Which to pick

Pick Anthropic: Claude Sonnet 4.5 when you need its specific strengths (see its verdict). Pick OpenAI: GPT-4.1 for lower cost per token (full verdict).