Gemini 3.6 Flash vs Gemini 3.1 Pro Preview
Gemini 3.6 Flash costs less on both: $0.45 in and $2.25 out per million tokens, against $1.20 in and $7.20 out for Gemini 3.1 Pro Preview. Both on one key at UplinkSwitch, each next to its developer's list price.
Prices · per million tokens, USD
| Tokens | Gemini 3.6 Flashgemini-3.6-flash | Gemini 3.1 Pro Previewgemini-3.1-pro-preview |
|---|---|---|
| Input | $0.45Google lists $0.75 · 40% under | $1.20Google lists $2.00 · 40% under |
| Cached input | $0.045Google lists $0.075 · 40% under | $0.12Google lists $0.20 · 40% under |
| Output | $2.25Google lists $3.75 · 40% under | $7.20Google lists $12.00 · 40% under |
| Context window | 1,048,576 tokens | 1,048,576 tokens |
| Max output | 65,536 tokens | 65,536 tokens |
| Input | text, image, audio, video | text, image, audio, video |
| Released | 2026-07-21 | 2026-02-19 |
| Formats | OpenAI SDK, Gemini SDK | Gemini SDK, OpenAI SDK |
| Developer |
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.
What the same work costs · USD, here and at list
| Work | Gemini 3.6 Flash | Gemini 3.1 Pro Preview |
|---|---|---|
| 1,000 chat requests | $2.03list $3.38 | $6.00list $10.00 |
| 100 long documents | $2.70list $4.50 | $7.44list $12.40 |
| A month of both, daily | $141.75list $236.25 | $403.20list $672.00 |
A chat request is 2,000 input and 500 output tokens; a long document is 50,000 in and 2,000 out; the month is 1,000 chats and 100 documents a day for 30 days, uncached. Over that month Gemini 3.6 Flash costs $261.45 less here.
Same key, same URL
One base URL and one key serve both models. The request below calls Gemini 3.6 Flash; 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":"gemini-3.6-flash","messages":[{"role":"user","content":"Hello"}]}'Model pages: Gemini 3.6 Flash, Gemini 3.1 Pro Preview. Pricing by family: Gemini. More comparisons: Gemini 3.6 Flash vs DeepSeek V4 Pro 0423, Claude Opus 5.5 vs Gemini 3.1 Pro Preview, GPT-6.1 Sol vs Gemini 3.1 Pro Preview, Gemini 3.1 Pro Preview vs Gemini 3.8 Flash.
Questions
- Which costs less, Gemini 3.6 Flash or Gemini 3.1 Pro Preview?
- Gemini 3.6 Flash costs less on both: $0.45 in and $2.25 out per million tokens, against $1.20 in and $7.20 out for Gemini 3.1 Pro Preview.
- Can I switch between them by changing the model id?
- Yes. Both answer in the OpenAI SDK and Gemini SDK format at the same base URL with the same key. Change the model id from gemini-3.6-flash 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.
- Is Gemini 3.6 Flash better than Gemini 3.1 Pro Preview?
- Better depends on the job; this page compares what the catalog can measure. Gemini 3.6 Flash costs less on both: $0.45 in and $2.25 out per million tokens, against $1.20 in and $7.20 out for Gemini 3.1 Pro Preview. Both take 1,048,576 tokens of context. Gemini 3.6 Flash is the newer release. Both run on the same key, so the fair test is your own prompt sent to each model id.