Claude Opus 5.5 vs Gemini 3.1 Pro Preview
Claude Opus 5.5 costs less on output ($6.00 against $7.20 per million tokens); Gemini 3.1 Pro Preview costs less on input ($1.20 against $2.10). Both on one key at UplinkSwitch, each next to its developer's list price.
Prices · per million tokens, USD
| Tokens | Claude Opus 5.5claude-opus-5-5 | Gemini 3.1 Pro Previewgemini-3.1-pro-preview |
|---|---|---|
| Input | $2.10Anthropic lists $4.00 · 47% under | $1.20Google lists $2.00 · 40% under |
| Cached input | $0.12Anthropic lists $0.20 · 40% under | $0.12Google lists $0.20 · 40% under |
| Output | $6.00Anthropic lists $20.00 · 70% under | $7.20Google lists $12.00 · 40% under |
| Formats | Anthropic SDK, OpenAI SDK | Gemini SDK, OpenAI SDK |
| Developer | Anthropic |
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 Opus 5.5; put gemini-3.1-pro-preview in the model field to call Gemini 3.1 Pro Preview instead.
shell
curl https://api.uplinkswitch.com/v1/chat/completions \
-H "authorization: Bearer sk-uplink-live-..." \
-H "content-type: application/json" \
-d '{"model":"claude-opus-5-5","messages":[{"role":"user","content":"Hello"}]}'Model pages: Claude Opus 5.5, Gemini 3.1 Pro Preview. Pricing by family: Claude, Gemini. More comparisons: Claude Opus 5.5 vs GPT-6.1 Sol, DeepSeek V4 Pro 0813 vs Claude Opus 5.5, Claude Opus 5.5 vs Claude Sonnet 5.5, GPT-6.1 Sol vs Gemini 3.1 Pro Preview.
Questions
- Which costs less, Claude Opus 5.5 or Gemini 3.1 Pro Preview?
- Claude Opus 5.5 costs less on output ($6.00 against $7.20 per million tokens); Gemini 3.1 Pro Preview costs less on input ($1.20 against $2.10).
- 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-opus-5-5 to gemini-3.1-pro-preview 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.