gpt-image-2 vs gemini-3.1-flash-lite-image: pricing and capabilities compared
In each model's cheapest group on this site, gpt-image-2 costs ¥0.12 per request (Standard group) and gemini-3.1-flash-lite-image costs ¥0.2 (Gemini Plus group).
gpt-image-2 is 40% cheaper on price per request.
gpt-image-2 is offered in 1 group and gemini-3.1-flash-lite-image in 3 groups, with no group in common: give one key several groups (up to 5, in priority order) or use two keys.
Prices updated Nov 13, 2026, 5:48 PM
At a glance
| Item | gpt-image-2 | gemini-3.1-flash-lite-image |
|---|---|---|
| Vendor | OpenAI | |
| Billing | Per request | Per request |
| Cheapest group | Standard | Gemini Plus |
| Per request ¥ | ¥0.1240% lower | ¥0.2 |
| Groups | 1 group | 3 groups |
| Input types | — | — |
| Output types | — | — |
| Capability tags | Image editing | Image editing |
| Endpoints | Chat Completions and Image generation | Chat Completions and Gemini generateContent |
| Available since | Apr 20, 2026 | Jul 01, 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 | Per request ¥ |
|---|---|
| Standard | ¥0.12 |
| Group | Per request ¥ |
|---|---|
| Official · Enterprise | ¥0.548 |
| Gemini PlusCheapest | ¥0.2 |
| Gemini High Tier | ¥0.3 |
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.
- Per-request billing: gpt-image-2 is 40% cheaper per request (¥0.12 vs ¥0.2).
- 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 Image generation: of the two, only gpt-image-2 supports it on this site.
- To call through Gemini generateContent: of the two, only gemini-3.1-flash-lite-image supports it on this site.
- If production needs a known request source, use official or cloud groups. gpt-image-2: none on this site; gemini-3.1-flash-lite-image: 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-image-2: prices in every group, availability and API docs
- gemini-3.1-flash-lite-image: prices in every group, availability and API docs
- Every OpenAI model and its price
- Every Google model and its price
- Chat Completions API reference
- Image generation 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
More comparisons
FAQ
Which is cheaper, gpt-image-2 or gemini-3.1-flash-lite-image?
In each model's cheapest group on this site, gpt-image-2 costs ¥0.12 per request (Standard group) and gemini-3.1-flash-lite-image costs ¥0.2 (Gemini Plus group). gpt-image-2 is 40% cheaper on price per request. What you actually pay depends on the split between input and output tokens and on the group you use. Prices updated Nov 13, 2026, 5:48 PM.
How do I call gpt-image-2 and gemini-3.1-flash-lite-image?
Create an API key in the console, set your SDK's base_url to https://www.tutujin.com/v1 and use gpt-image-2 or gemini-3.1-flash-lite-image as the model. gpt-image-2 supports: Chat Completions and Image generation. gemini-3.1-flash-lite-image supports: Chat Completions and Gemini generateContent.
Which groups offer gpt-image-2 and gemini-3.1-flash-lite-image?
gpt-image-2: Standard. gemini-3.1-flash-lite-image: Official · Enterprise, Gemini Plus and Gemini High Tier. No group offers both: give one key several groups (up to 5, in priority order) or use two keys.
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, 5:48 PM.