gpt-5.5 vs gemini-3.1-pro-preview: pricing and capabilities compared
In each model's cheapest group on this site, gpt-5.5 costs ¥10 input and ¥80 output (Standard group) and gemini-3.1-pro-preview costs ¥4 input and ¥24 output (Standard group), per 1M tokens.
gemini-3.1-pro-preview is cheaper on input, output and cache reads, by 60%, 70% and 60% respectively.
gpt-5.5 is offered in 6 groups and gemini-3.1-pro-preview in 4 groups. Groups offering both: Standard and Official · Enterprise; a key in any of them can call either model.
Prices updated Nov 13, 2026, 5:58 PM
At a glance
| Item | gpt-5.5 | gemini-3.1-pro-preview |
|---|---|---|
| Vendor | OpenAI | |
| Billing | Per token | Per token |
| Cheapest group | Standard | Standard |
| Input ¥ per 1M tokens | ¥10 | ¥460% lower |
| Output ¥ per 1M tokens | ¥80 | ¥2470% lower |
| Cache read ¥ per 1M tokens | ¥1 | ¥0.460% lower |
| Groups | 6 groups | 4 groups |
| Input types | — | — |
| Output types | — | — |
| Capability tags | Multimodal, Reasoning and Responses API | Reasoning and Multimodal |
| Endpoints | Chat Completions | Chat Completions and Gemini generateContent |
| Available since | Apr 24, 2026 | Feb 20, 2026 |
Prices are each model's cheapest group, in CNY; the side marked "lower" is cheaper. Data comes from our price list and model catalog; anything not listed shows as —.
Prices in every group
The same model costs different amounts in different groups; a key's group decides its line and its price.
| Group | Input ¥ per 1M tokens | Output ¥ per 1M tokens | Cache read ¥ per 1M tokens |
|---|---|---|---|
| StandardCheapestBoth | ¥10 | ¥80 | ¥1 |
| Azure | ¥10 | ¥80 | ¥1 |
| Azure Plus | ¥15 | ¥120 | ¥1.5 |
| OpenAI Direct | ¥22.5 | ¥180 | ¥2.25 |
| OpenAI Direct Plus | ¥30 | ¥240 | ¥3 |
| Official · EnterpriseBoth | ¥54.75 | ¥438 | ¥5.48 |
| Group | Input ¥ per 1M tokens | Output ¥ per 1M tokens | Cache read ¥ per 1M tokens |
|---|---|---|---|
| StandardCheapestBoth | ¥4 | ¥24 | ¥0.4 |
| Official · EnterpriseBoth | ¥21.9 | ¥131.4 | ¥2.19 |
| Gemini Plus | ¥8 | ¥48 | ¥0.8 |
| Gemini High Tier | ¥12 | ¥72 | ¥1.2 |
How to choose
These points use each model's cheapest-group prices and catalog data. Before going live, run real requests with a key in your target group and check quality, speed and billing.
- On unit prices alone (each at its cheapest group): gemini-3.1-pro-preview is cheaper on input, output and cache reads, so the same token usage costs less.
- When you resend the same long prefix (a fixed system prompt, the same long document), cached input is billed at the cache-read price: gpt-5.5 ¥1, gemini-3.1-pro-preview ¥0.4 (per 1M tokens).
- Both support Chat Completions, so requests look the same and switching means changing the model parameter (the key's groups must offer both models).
- To call through Gemini generateContent: of the two, only gemini-3.1-pro-preview supports it on this site.
- If production needs a known request source, use official or cloud groups. gpt-5.5: Azure, Azure Plus, OpenAI Direct, OpenAI Direct Plus and Official · Enterprise; gemini-3.1-pro-preview: Official · Enterprise, Gemini Plus and Gemini High Tier.
How to call them
Both models work with a Tutujin API key: set your SDK's base_url to https://www.tutujin.com/v1 and use the model name; everything else is written as with the official SDK.
- gpt-5.5: prices in every group, availability and API docs
- gemini-3.1-pro-preview: prices in every group, availability and API docs
- Every OpenAI model and its price
- Every Google model and its price
- Chat Completions API reference
- Gemini generateContent API reference
- Quickstart: create a key and send your first request
- How to choose a group
- Models page: every model with prices in every group
- How billing works: pay as you go, groups and balance
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- gemini-3.1-pro-preview vs grok-4.7
FAQ
Which is cheaper, gpt-5.5 or gemini-3.1-pro-preview?
In each model's cheapest group on this site, gpt-5.5 costs ¥10 input and ¥80 output (Standard group) and gemini-3.1-pro-preview costs ¥4 input and ¥24 output (Standard group), per 1M tokens. gemini-3.1-pro-preview is cheaper on input, output and cache reads, by 60%, 70% and 60% respectively. What you actually pay depends on the split between input and output tokens and on the group you use. Prices updated Nov 13, 2026, 5:58 PM.
How do I call gpt-5.5 and gemini-3.1-pro-preview?
Create an API key in the console, set your SDK's base_url to https://www.tutujin.com/v1 and use gpt-5.5 or gemini-3.1-pro-preview as the model. gpt-5.5 supports: Chat Completions. gemini-3.1-pro-preview supports: Chat Completions and Gemini generateContent.
Which groups offer gpt-5.5 and gemini-3.1-pro-preview?
gpt-5.5: Standard, Azure, Azure Plus, OpenAI Direct, OpenAI Direct Plus and Official · Enterprise. gemini-3.1-pro-preview: Standard, Official · Enterprise, Gemini Plus and Gemini High Tier. Groups offering both: Standard and Official · Enterprise; a key in any of them can call either model.
Where do the prices on this page come from?
From our live price list — the same data as the model pages and the models page — shown for each model's cheapest group. Prices updated Nov 13, 2026, 5:58 PM.