gpt-6.1-sol vs kimi-k2.5: pricing and capabilities compared
In each model's cheapest group on this site, gpt-6.1-sol costs ¥4 input and ¥20 output (Standard group) and kimi-k2.5 costs ¥5.6 input and ¥29.4 output (China Models group), per 1M tokens.
gpt-6.1-sol is cheaper on input and output, by 29% and 32% respectively.
Only gpt-6.1-sol has a cache-read price on this site (¥0.2 per 1M tokens).
gpt-6.1-sol is offered in 6 groups and kimi-k2.5 in 4 groups. Groups offering both: Standard, Azure Plus and OpenAI Direct; a key in any of them can call either model.
Prices updated Nov 13, 2026, 6:08 PM
At a glance
| Item | gpt-6.1-sol | kimi-k2.5 |
|---|---|---|
| Vendor | OpenAI | Moonshot Kimi |
| Billing | Per token | Per token |
| Cheapest group | Standard | China Models |
| Input ¥ per 1M tokens | ¥429% lower | ¥5.6 |
| Output ¥ per 1M tokens | ¥2032% lower | ¥29.4 |
| Cache read ¥ per 1M tokens | ¥0.2 | — |
| Groups | 6 groups | 4 groups |
| Input types | text and images | — |
| Output types | text | — |
| Capability tags | Vision and Reasoning | Vision, Multimodal and Reasoning |
| Endpoints | Chat Completions and Responses | Chat Completions |
| Available since | Sep 30, 2026 | Feb 06, 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 | ¥4 | ¥20 | ¥0.2 |
| Azure | ¥4 | ¥20 | ¥0.2 |
| Azure PlusBoth | ¥6 | ¥30 | ¥0.3 |
| OpenAI DirectBoth | ¥9 | ¥45 | ¥0.45 |
| OpenAI Direct Plus | ¥12 | ¥60 | ¥0.6 |
| Official · Enterprise | ¥21.9 | ¥109.5 | ¥1.1 |
| Group | Input ¥ per 1M tokens | Output ¥ per 1M tokens |
|---|---|---|
| StandardBoth | ¥8 | ¥42 |
| Azure PlusBoth | ¥12 | ¥63 |
| OpenAI DirectBoth | ¥18 | ¥94.5 |
| China ModelsCheapest | ¥5.6 | ¥29.4 |
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): gpt-6.1-sol is cheaper on input and output, so the same token usage costs less.
- If you need a cache-read price: only gpt-6.1-sol has one on this site (¥0.2 per 1M tokens); kimi-k2.5 has no separate price for cached input.
- 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 Responses: of the two, only gpt-6.1-sol supports it on this site.
- If production needs a known request source, use official or cloud groups. gpt-6.1-sol: Azure, Azure Plus, OpenAI Direct, OpenAI Direct Plus and Official · Enterprise; kimi-k2.5: Azure Plus and OpenAI Direct.
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-6.1-sol: prices in every group, availability and API docs
- kimi-k2.5: prices in every group, availability and API docs
- Every OpenAI model and its price
- Every Moonshot Kimi model and its price
- Chat Completions API reference
- Responses 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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- gpt-6.1-sol vs grok-4.6
- gpt-6.1-sol vs grok-4.7
- claude-opus-5-5 vs kimi-k2.5
- gemini-3.1-pro-preview vs kimi-k2.5
- deepseek-v4.1-flash vs kimi-k2.5
FAQ
Which is cheaper, gpt-6.1-sol or kimi-k2.5?
In each model's cheapest group on this site, gpt-6.1-sol costs ¥4 input and ¥20 output (Standard group) and kimi-k2.5 costs ¥5.6 input and ¥29.4 output (China Models group), per 1M tokens. gpt-6.1-sol is cheaper on input and output, by 29% and 32% respectively. Only gpt-6.1-sol has a cache-read price on this site (¥0.2 per 1M tokens). What you actually pay depends on the split between input and output tokens and on the group you use. Prices updated Nov 13, 2026, 6:08 PM.
How do I call gpt-6.1-sol and kimi-k2.5?
Create an API key in the console, set your SDK's base_url to https://www.tutujin.com/v1 and use gpt-6.1-sol or kimi-k2.5 as the model. gpt-6.1-sol supports: Chat Completions and Responses. kimi-k2.5 supports: Chat Completions.
Which groups offer gpt-6.1-sol and kimi-k2.5?
gpt-6.1-sol: Standard, Azure, Azure Plus, OpenAI Direct, OpenAI Direct Plus and Official · Enterprise. kimi-k2.5: Standard, Azure Plus, OpenAI Direct and China Models. Groups offering both: Standard, Azure Plus and OpenAI Direct; 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, 6:08 PM.