GPT-6.1 Sol vs Claude Sonnet 5.5 API pricing

Prices updated ยท Source: OpenRouter models API

GPT-6.1 Sol costs $2.00 per 1M input tokens and $10.00 per 1M output tokens on OpenAI. Claude Sonnet 5.5 costs $2.00 input and $10.00 output on Anthropic. On input, GPT-6.1 Sol is the same as Claude Sonnet 5.5; on output it is the same as Claude Sonnet 5.5.

Cost at typical workloads

WorkloadGPT-6.1 SolClaude Sonnet 5.5
Chatbot5M in / 1M out per month$20.00/mo$20.00/mo
RAG over documents50M in / 2M out$120.00/mo$120.00/mo
Content generation2M in / 10M out$104.00/mo$104.00/mo

Calculate your own volume

HostContext
GPT-6.1 SolOpenAIOpenAI$2.00$10.001.05M$40.00
Claude Sonnet 5.5AnthropicAnthropic$2.00$10.001M$40.00

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Standard-tier prices only; batch, flex and priority tiers and prompt-cache discounts are excluded. Compare every model in the full LLM API pricing table.

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