MistralAI推出API免费套餐已有几天，一直犹豫不觉是否发出来的原因是Mistral已经多次忽悠开发者...8月底本来说9月不订阅计划就用不了，结果在9月17日直接将大部分模型免费开放。
直接访问 https://console.mistral.ai/ ，进入计费页面开通。 加入免费计划首先要通过电话验证，这里我已经认证过了。使用谷歌虚拟号码，国内手机号也支持输入，不过我没有试。 
找半天免费套餐有什么限制，也没找到，最后只看到一份可使用的模型型号限制说明，如下： Mistral 提供两种类型的模型：免费模型和高级模型。 高级模型| Model | Weight availability | Available via API | Description | Max Tokens | API Endpoints | Version |
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| Mistral Large | ✔️
Mistral Research License | ✔️ | Our top-tier reasoning model for high-complexity tasks with the lastest version v2 released July 2024. Learn more on ourblog post | 128k | mistral-large-latest | 24.07 | | Mistral Small | ✔️
Mistral Research License | ✔️ | Our latest enterprise-grade small model with the lastest version v2 released September 2024. Learn more on ourblog post | 32k | mistral-small-latest | 24.09 | | Codestral | ✔️
Mistral Non-Production License | ✔️ | Our cutting-edge language model for coding released May 2024 | 32k | codestral-latest | 24.05 | | Mistral Embed |
| ✔️ | Our state-of-the-art semantic for extracting representation of text extracts | 8k | mistral-embed | 23.12 |
免费模型| Model | Weight availability | Available via API | Description | Max Tokens | API Endpoints | Version |
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| Pixtral | ✔️
Apache2 | ✔️ | A 12B model with image understanding capabilities in addition to text. Learn more on ourblog post | 128k | pixtral-12b-2409 | 24.09 | |
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| | Model | Weight availability | Available via API | Description | Max Tokens | API Endpoints | Version | | --- | --- | --- | --- | --- | --- | --- | | Mistral Nemo | ✔️
Apache2 | ✔️ | Our best multilingual open source model released July 2024. Learn more on ourblog post | 128k | open-mistral-nemo | 24.07 | | Codestral Mamba | ✔️
Apache2 | ✔️ | Our first mamba 2 open source model released July 2024. Learn more on ourblog post | 256k | open-codestral-mamba | v0.1 | | Mathstral | ✔️
Apache2 |
| Our first math open source model released July 2024. Learn more on ourblog post | 32k | NA | v0.1 | |
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| | Model | Weight availability | Available via API | Description | Max Tokens | API Endpoints | Version | | --- | --- | --- | --- | --- | --- | --- | | Mistral 7B | ✔️
Apache2 | ✔️ | Our first dense model released September 2023. Learn more on ourblog post | 32k | open-mistral-7b | v0.3 | | Mixtral 8x7B | ✔️
Apache2 | ✔️ | Our first sparse mixture-of-experts released December 2023. Learn more on ourblog post | 32k | open-mixtral-8x7b | v0.1 | | Mixtral 8x22B | ✔️
Apache2 | ✔️ | Our best open source model to date released April 2024. Learn more on ourblog post | 64k | open-mixtral-8x22b | v0.1 |
看来免费的都可以用，请求地址格式：https://api.mistral.ai/v1/chat/completions
然后直接创建密钥即可使用： 
注意：他们家 api 不支持惩罚参数，可以搞个 worker 屏蔽掉，否则在很多终端中可能异常。 
mistral 过滤不支持字段 worker 脚本（更新 cors 跨域处理）： /**Welcome to Cloudflare Workers! This is your first worker. *
Run "npm run dev" in your terminal to start a development server
Open a browser tab at http://localhost:8787/ to see your worker in action
Run "npm run deploy" to publish your worker *Learn more at https://developers.cloudflare.com/workers/ */export default {async fetch(request, env) {// 处理预检请求if (request.method === 'OPTIONS') {return handleOptions(request);}const url = new URL(request.url);url.host = 'api.mistral.ai';let body;try {// 获取 body 数据并解析为 JSONbody = await request.json();} catch (error) {return new Response('Invalid JSON', { status: 400 });}// 定义支持字段列表const allowedFields = ['model', 'messages', 'temperature', 'topp', 'maxtokens', 'mintokens', 'stream', 'stop', 'randomseed','responseformat','tools','toolchoice','safe_prompt'];// 过滤 body 中不在支持字段列表中的字段const filteredBody = filterFields(body, allowedFields);const newBody = JSON.stringify(filteredBody);const modifiedRequest = new Request(url, {method: request.method,body: newBody,headers: request.headers});return fetch(modifiedRequest);}}// 过滤不支持参数function filterFields(obj, allowedFields) {let result = {};for (const key in obj) {if (allowedFields.includes(key)) {result[key] = obj[key];}}return result;}// 处理预检请求的函数function handleOptions(request) {const headers = {'Access-Control-Allow-Origin': '*', // 允许所有来源'Access-Control-Allow-Methods': 'GET, POST, OPTIONS', // 允许的方法'Access-Control-Allow-Headers': 'Content-Type, Authorization', // 允许的头部'Access-Control-Max-Age': '86400', // 预检请求的缓存时间（秒）};return new Response(null, {status: 204,headers: headers});}
免费的代码模型需要单独申请密钥使用 
虽然目前国内有很多价格及低、性能也不错的模型（DeepSeek），甚至也有免费的大模型API（智谱清言）但免费也要优中选优嘛。 Mistral有专精代码的模型Codestral，上面内容已经介绍，LMSYS 排名挺高，可以接入到Cursor试试，用起来感觉还行。 
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