Compare

Claude Sonnet 5 vs GPT-5.5

List rates and scores as of 2026-11-04. Lower $/MTok is cheaper. Higher scores rank better. Input edge: GPT-5.5 Output edge: GPT-5.5

Model A

Claude Sonnet 5

Anthropic

anthropic/claude-sonnet-5

reasoningtools

List input$1
List output$5
Context1M
Offers74
Arena visionN/A
AA intelligence38.2
AA coding71.5
AA agentic43.6

On plans: Amazon Q Developer Pro, Claude Enterprise, Claude Max $100, Claude Max $200

Model B

GPT-5.5

OpenAI

openai/gpt-5-5

reasoningtools

List input$0.1875
List output$1.13
Context1.1M
Offers64
Arena vision1287
AA intelligence38.4
AA coding74.9
AA agentic36.4

On plans: Cursor Business, Cursor Pro, Cursor Ultra, Copilot Business

Score sources on /benchmarks.