Claude Sonnet 5.5 vs GPT-6.1 Sol
Output costs the same on both ($3.00 per million tokens); GPT-6.1 Sol costs less on input ($0.60 against $1.20). Both on one key at UplinkSwitch, each next to its developer's list price.
Prices · per million tokens, USD
| Tokens | Claude Sonnet 5.5claude-sonnet-5-5 | GPT-6.1 Solgpt-6.1-sol |
|---|---|---|
| Input | $1.20Anthropic lists $2.00 · 40% under | $0.60OpenAI lists $2.00 · 70% under |
| Cached input | $0.075Anthropic lists $0.10 · 25% under | $0.06OpenAI lists $0.10 · 40% under |
| Output | $3.00Anthropic lists $10.00 · 70% under | $3.00OpenAI lists $10.00 · 70% under |
| Formats | Anthropic SDK, OpenAI SDK | OpenAI SDK |
| Developer | Anthropic | OpenAI |
List price: each developer's published rate, read October 2026. A model with no cached rate bills cached tokens at its input rate. Live from GET https://api.uplinkswitch.com/v1/catalog.
Same key, same URL
One base URL and one key serve both models. The request below calls Claude Sonnet 5.5; put gpt-6.1-sol in the model field to call GPT-6.1 Sol instead.
shell
curl https://api.uplinkswitch.com/v1/chat/completions \
-H "authorization: Bearer sk-uplink-live-..." \
-H "content-type: application/json" \
-d '{"model":"claude-sonnet-5-5","messages":[{"role":"user","content":"Hello"}]}'Model pages: Claude Sonnet 5.5, GPT-6.1 Sol. Pricing by family: Claude, GPT. More comparisons: Claude Sonnet 5.5 vs Gemini 3.8 Flash, Kimi K3 vs Claude Sonnet 5.5, Claude Sonnet 5.5 vs DeepSeek V4 Pro 0813, Claude Opus 5.5 vs GPT-6.1 Sol.
Questions
- Which costs less, Claude Sonnet 5.5 or GPT-6.1 Sol?
- Output costs the same on both ($3.00 per million tokens); GPT-6.1 Sol costs less on input ($0.60 against $1.20).
- Can I switch between them by changing the model id?
- Yes. Both answer in the OpenAI SDK format at the same base URL with the same key. Change the model id from claude-sonnet-5-5 to gpt-6.1-sol and nothing else.
- Is there a subscription?
- No. Prepaid credit from $10, with no subscription or monthly fee. Each top-up locks your prices for 30 days.