Price comparison · checked October 12, 2026

Claude Sonnet 5.5 vs GPT-6.1 Sol pricing

For a typical support chatbot, Claude Sonnet 5.5 and GPT-6.1 Sol cost the same: $360 a month.

Claude Sonnet 5.5GPT-6.1 Sol
ProviderAnthropicOpenAI
Input / 1M$2.00$2.00
Cached input / 1M$0.10$0.10
Output / 1M$10.00$10.00
Context window1M1.05M
Notes–Short-context rate

Monthly cost by workload

WorkloadClaude Sonnet 5.5GPT-6.1 SolDifference
Support chatbot
60,000 req · 1,500 in / 300 out
$360$360Same
Document summaries
20,000 req · 6,000 in / 400 out
$320$320Same
Coding assistant
30,000 req · 4,000 in / 800 out
$480$480Same
RAG search
100,000 req · 2,500 in / 250 out
$750$750Same

Standard rates, no caching or batch discounts. Sources: developers.openai.com · platform.claude.com

Try your own numbers

Start from a use case

1,000 tokens is about 750 English words. Input includes your system prompt, chat history and any retrieved documents.

Claude Sonnet 5.5
AnthropicCheapest
$360 /mo
GPT-6.1 Sol
OpenAICheapest
$360 /mo

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