Model
GPT-5.5 API pricing
Compare the published GPT-5.5 (gpt-5.5) list rate with corouter's outlet rate, and estimate a monthly token bill. GPT-5.5 keeps the GPT-5.6 Sol list rate on input and output, with a cache-read rate and no cache-write rate. Send gpt-5.5 when a workload was already qualified on that exact ID.
Where this model fits
- Workloads already qualified on the gpt-5.5 ID
- Vision extraction from screenshots and scanned pages
- Code review assistance that must keep this ID
Estimates only. Actual billing depends on your real token counts, cache hit rate, and the prices in effect at request time.
From the blog
- GPT-5.5 vs Claude Sonnet 4.6, priced honestlyTwo frontier models from two vendors, compared on the only dimension we can verify: what they cost to run at published rates on identical workloads.Read the post
- OpenAI vs Anthropic API pricingBoth vendors publish per-million-token rates, but they price context, output, and caching differently enough that the cheaper choice depends entirely on your workload shape.Read the post