Cerebras
Cerebras 通过其革命性的晶圆级芯片架构提供世界上最快的 AI 推理。与从外部内存传输模型权重的传统 GPU 不同，Cerebras 将整个模型存储在芯片上，消除了带宽瓶颈，实现每秒高达 2,600 个 token 的速度——通常比 GPU 快 20 倍。
网站： https://cloud.cerebras.ai/
获取 API 密钥
- 注册/登录： 前往 Cerebras Cloud 创建账户或登录。
- 导航到 API 密钥： 在您的仪表板中访问 API 密钥部分。
- 创建密钥： 生成新的 API 密钥。给它一个描述性名称（例如"Caret"）。
- 复制密钥： 立即复制 API 密钥。安全存储。
支持的模型
Caret 支持以下 Cerebras 模型：
qwen-3-coder-480b-free（免费层）- 免费的高性能编程模型qwen-3-coder-480b- 旗舰 480B 参数编程模型qwen-3-235b-a22b-instruct-2507- 高级指令跟随模型qwen-3-235b-a22b-thinking-2507- 具有逐步思考的推理模型llama-3.3-70b- Meta 的 Llama 3.3 模型，针对速度优化qwen-3-32b- 紧凑而强大的通用任务模型
在 Caret 中配置
- 打开 Caret 设置： 点击 Caret 面板中的设置图标（⚙️）。
- 选择提供商： 从"API 提供商"下拉菜单中选择"Cerebras"。
- 输入 API 密钥： 将您的 Cerebras API 密钥粘贴到"Cerebras API Key"字段中。
- 选择模型： 从"模型"下拉菜单中选择您想要的模型。
- （可选）自定义基本 URL： 大多数用户不需要调整此设置。
Cerebras's Wafer-Scale Advantage
Cerebras has fundamentally reimagined AI hardware architecture to solve the inference speed problem:
Wafer-Scale Architecture
Traditional GPUs use separate chips for compute and memory, forcing them to constantly shuttle model weights back and forth. Cerebras built the world's largest AI chip—a wafer-scale engine that stores entire models on-chip. No external memory, no bandwidth bottlenecks, no waiting.
Revolutionary Speed
- Up to 2,600 tokens per second - often 20x faster than GPUs
- Single-second reasoning - what used to take minutes now happens instantly
- Real-time applications - reasoning models become practical for interactive use
- No bandwidth limits - entire models stored on-chip eliminate memory bottlenecks
The Cerebras Scaling Law
Cerebras discovered that faster inference enables smarter AI. Modern reasoning models generate thousands of tokens as "internal monologue" before answering. On traditional hardware, this takes too long for real-time use. Cerebras makes reasoning models fast enough for everyday applications.
Quality Without Compromise
Unlike other speed optimizations that sacrifice accuracy, Cerebras maintains full model quality while delivering unprecedented speed. You get the intelligence of frontier models with the responsiveness of lightweight ones.
Learn more about Cerebras's technology in their blog posts:
Cerebras Code Plans
Cerebras offers specialized plans for developers:
Code Pro ($50/month)
- Access to Qwen3-Coder with fast, high-context completions
- Up to 24 million tokens per day
- Ideal for indie developers and weekend projects
- 3-4 hours of uninterrupted coding per day
Code Max ($200/month)
- Heavy coding workflow support
- Up to 120 million tokens per day
- Perfect for full-time development and multi-agent systems
- No weekly limits, no IDE lock-in
Special Features
Free Tier
The qwen-3-coder-480b-free model provides access to high-performance inference at no cost—unique among speed-focused providers.
Real-Time Reasoning
Reasoning models like qwen-3-235b-a22b-thinking-2507 can complete complex multi-step reasoning in under a second, making them practical for interactive development workflows.
Coding Specialization
Qwen3-Coder models are specifically optimized for programming tasks, delivering performance comparable to Claude Sonnet 4 and GPT-4.1 in coding benchmarks.
No IDE Lock-In
Works with any OpenAI-compatible tool—Cursor, Continue.dev, Caret, or any other editor that supports OpenAI endpoints.
Tips and Notes
- Speed Advantage: Cerebras excels at making reasoning models practical for real-time use. Perfect for agentic workflows that require multiple LLM calls.
- Free Tier: Start with the free model to experience Cerebras speed before upgrading to paid plans.
- Context Windows: Models support context windows ranging from 64K to 128K tokens for including substantial code context.
- Rate Limits: Generous rate limits designed for development workflows. Check your dashboard for current limits.
- Pricing: Competitive pricing with significant speed advantages. Visit Cerebras Cloud for current rates.
- Real-Time Applications: Ideal for applications where AI response time matters—code generation, debugging, and interactive development.