OpenRouter 免费模型大全
汇总 OpenRouter 全部 21 个免费可用 AI 模型,无需付费、无需信用卡,注册即可调用。
⚡ 快速开始
from openai import OpenAI
client = OpenAI(
api_key="your-openrouter-api-key",
base_url="https://openrouter.ai/api/v1"
)
response = client.chat.completions.create(
model="meta-llama/llama-3.3-70b-instruct:free", # 任意下方 Model ID
messages=[{"role": "user", "content": "你好"}]
)
print(response.choices[0].message.content)API Key 在 openrouter.ai/keys 免费获取,无需信用卡。
全部免费模型 (21 个)
| 模型名称 | 提供商 | 上下文 | 能力 | Model ID |
|---|---|---|---|---|
Cohere: North Mini Code North Mini Code is Cohere's first agentic coding model and the debut of its North family. A sparse m… | cohere | 256K | 免费代码 | cohere/north-mini-code:free |
Dots Studio: Dots3-Note Preview Dots3-Note Preview is an open-weight mixture-of-experts model from Dots Studio, with 16B active para… | dots-studio | 512K | 免费视觉 | dots-studio/dots-3-note-preview:free |
Free Models Router The simplest way to get free inference. openrouter/free is a router that selects free models at rand… | OpenRouter | 200K | 免费视觉自动路由 | openrouter/free |
Google: Gemma 4 26B A4B Gemma 4 26B A4B IT is an instruction-tuned Mixture-of-Experts (MoE) model from Google DeepMind. Desp… | 262K | 免费视觉 | google/gemma-4-26b-a4b-it:free | |
Google: Gemma 4 31B Gemma 4 31B Instruct is Google DeepMind's 30.7B dense multimodal model supporting text and image inp… | 262K | 免费视觉 | google/gemma-4-31b-it:free | |
Google: Lyria 3 Clip Preview 30 second duration clips are priced at $0.04 per clip. Lyria 3 is Google's family of music generatio… | 1M | 免费视觉 | google/lyria-3-clip-preview | |
Google: Lyria 3 Pro Preview Full-length songs are priced at $0.08 per song. Lyria 3 is Google's family of music generation model… | 1M | 免费视觉 | google/lyria-3-pro-preview | |
inclusionAI: Ling 3.0 Flash Fin Ling 3.0 Flash Fin is a finance-focused mixture-of-experts model from InclusionAI, built on Ling 3.0… | inclusionai | 262K | 免费 | inclusionai/ling-3.0-flash-fin:free |
inclusionAI: Ling 3.0 Flash Sante Ling 3.0 Flash Sante is a health and medicine-focused mixture-of-experts model from InclusionAI, bui… | inclusionai | 262K | 免费 | inclusionai/ling-3.0-flash-sante:free |
LiquidAI: LFM2.5-2.6B LFM2.5-2.6B is a compact reasoning model from Liquid AI. It is suited for agent workflows, data extr… | LiquidAI | 66K | 免费 | liquid/lfm-2.5-2.6b:free |
MiniMax: MiniMax M2.7 MiniMax-M2.7 is a next-generation large language model designed for autonomous, real-world productiv… | MiniMax | 197K | 免费 | minimax/minimax-m2.7:free |
MiniMax: MiniMax M3 MiniMax-M3 is a multimodal foundation model from MiniMax. It supports text, image, and video inputs … | MiniMax | 1M | 免费视觉 | minimax/minimax-m3:free |
NVIDIA: Nemotron 3 Nano Omni NVIDIA Nemotron™ 3 Nano Omni is a 30B-A3B open multimodal model designed to function as a perception… | NVIDIA | 256K | 免费视觉推理 | nvidia/nemotron-3-nano-omni-30b-a3b-reasoning:free |
NVIDIA: Nemotron 3 Super NVIDIA Nemotron 3 Super is a 120B-parameter open hybrid MoE model, activating just 12B parameters fo… | NVIDIA | 262K | 免费 | nvidia/nemotron-3-super-120b-a12b:free |
NVIDIA: Nemotron 3 Ultra NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B … | NVIDIA | 1M | 免费 | nvidia/nemotron-3-ultra-550b-a55b:free |
NVIDIA: Nemotron 3.5 Content Safety NVIDIA Nemotron 3.5 Content Safety is a compact 4B-parameter multimodal guardrail model from NVIDIA,… | NVIDIA | 128K | 免费视觉 | nvidia/nemotron-3.5-content-safety:free |
NVIDIA: Nemotron 3.5 Lightning NVIDIA Nemotron 3.5 Lightning is an open mixture-of-experts model from NVIDIA, with 3B active parame… | NVIDIA | 1M | 免费 | nvidia/nemotron-3.5-lightning:free |
Poolside: Laguna S 2.1 Laguna S 2.1 is the latest coding agent model from [Poolside](<https://poolside.ai/>). Laguna S 2.1 … | poolside | 262K | 免费 | poolside/laguna-s-2.1:free |
Poolside: Laguna XS 2.1 Laguna XS 2.1 is the latest coding agent model in the 33B-A3B category from [Poolside](https://pools… | poolside | 262K | 免费 | poolside/laguna-xs-2.1:free |
Thinking Machines: Inkling Inkling is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 41B a… | thinkingmachines | 1M | 免费视觉推理 | thinkingmachines/inkling:free |
Thinking Machines: Inkling Small Inkling Small is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with… | thinkingmachines | 1M | 免费视觉推理 | thinkingmachines/inkling-small:free |
什么是 OpenRouter 免费模型?
OpenRouter 是全球领先的 AI 模型聚合 API 平台,支持一个 API Key 调用 200+ 个大模型。 其中部分模型提供完全免费的调用额度(model id 以 :free 结尾), 包括 Meta Llama 3.3 70B、Google Gemma 3 27B、Qwen3 等顶级开源模型。 免费版与付费版使用相同的模型权重,能力无差别,适合个人开发者学习、测试和低频场景。
免费模型使用限制
- • 每日请求次数有限额(通常 20–200 次/天)
- • 高峰期响应速度比付费慢,可能排队
- • 不保证 SLA 和 99.9% 可用性
- • 适合测试、原型开发,不建议生产重度依赖
- • 超出免费限额可切换同名付费模型(去掉
:free)
推荐免费模型选择
- 🏆 综合最强:Llama 3.3 70B / Qwen3 Coder 480B
- ⚡ 速度最快:Gemma 3 4B / Qwen3 4B
- 🧠 推理代码:Qwen3 Coder / NVIDIA Nemotron
- 👁️ 多模态视觉:Gemma 3 27B / NVIDIA Nano VL
- 💬 中文最佳:Qwen3 / GLM 4.5 Air / MiniMax M2.5
国内如何使用 OpenRouter 免费 API?
OpenRouter 在国内需要代理访问。推荐通过本站收录的 AI API 中转站, 部分中转站已支持 OpenRouter 格式,可国内直连无需翻墙。 也可通过 VPN 直接访问 openrouter.ai/api/v1。
常见问题
OpenRouter 免费模型怎么用?
注册 OpenRouter 账号获取 API Key(openrouter.ai/keys),将 base_url 设为 https://openrouter.ai/api/v1,model 填写对应的 model id(如 meta-llama/llama-3.3-70b-instruct:free),即可免费调用。完全兼容 OpenAI SDK,只需替换 base_url 和 api_key 两个参数。
OpenRouter 免费模型每天能调用多少次?
大多数免费模型每天限额 20–200 次请求,具体视模型而定。超出限额会返回 429 错误,可等到次日重置,或切换到同名付费版本(去掉 :free 后缀)。
免费版和付费版模型有什么区别?
使用完全相同的模型权重,输出质量无差别。区别在于:付费版请求优先级更高、无配额限制、高峰期响应更快、有 SLA 保障。免费版适合测试和低频场景,生产环境建议使用付费版。
哪个 OpenRouter 免费模型最好用?
综合能力推荐 Meta Llama 3.3 70B(通用)、Qwen3 Coder 480B(代码)、Google Gemma 3 27B(多语言+视觉)、Qwen3/GLM 4.5 Air(中文)。具体选择取决于你的使用场景。
国内能直接用 OpenRouter 免费 API 吗?
OpenRouter 官方站点在国内需要代理访问。可以通过本站收录的 AI API 中转站(支持 OpenRouter 格式的)国内直连调用,或自行通过 VPN 直连 openrouter.ai/api/v1。