Head-to-Head

GPT-4o vs Claude 3.5 Sonnet: Cost and Capability Comparison

Live head-to-head cost and capability comparison of GPT-4o and Claude 3.5 Sonnet. At 1,000 API requests per day, the monthly cost difference between these two frontier models is minimal — but the right choice depends on your workload type.

Current pricing (June 2026)

  • GPT-4o: $2.50 input / $10.00 output per 1M tokens, 128k context, multimodal
  • Claude 3.5 Sonnet: $3.00 input / $15.00 output per 1M tokens, 200k context
  • At 500 input / 300 output tokens per request, 1,000 daily requests: GPT-4o ~$1,300/mo, Claude 3.5 Sonnet ~$1,650/mo

When to choose each model

  • GPT-4o: multimodal tasks (image + text), tool use, cost-sensitive at scale
  • Claude 3.5 Sonnet: longer documents (200k context), instruction-following accuracy, coding tasks
Compare costs for my workload