今すぐ使える無料AIチャット

You do not need a graphics card to use a strong free AI. The labs run their own free chat websites, free APIs let you try top models here, and small models run on your own phone or PC. Data of 1 Nov 2026.

Free AI chats from the labs

Most labs that release open models also run a free chat website. On every model page we link the official chat when there is one. Next to each lab, its best free chat model on Arena.

DeepSeek

Best free model: DeepSeek-V4.1-Flash-20260910 (Max) · #35 of 419 in Chat
Open chat.deepseek.com

Kimi（Moonshot）

Best free model: Kimi K3 (Max) · #19 of 419 in Chat
Open www.kimi.com

GLM（Z.ai）

Best free model: GLM-5.3 (Max) · #28 of 419 in Chat
Open chat.z.ai

Qwen（Alibaba）

Best free model: Qwen3.5-397B-A17B · #94 of 419 in Chat
Open chat.qwen.ai

MiniMax

Best free model: MiniMax-M3 · #98 of 419 in Chat
Open agent.minimax.io

Tencent

Best free model: Hy3 · #75 of 419 in Chat
Open yuanbao.tencent.com

Google

Best free model: Gemma 4 31B · #77 of 419 in Chat
Open aistudio.google.com

NVIDIA

Best free model: NVIDIA-Nemotron-3-Ultra-550B-A55B (NVFP4) · #120 of 419 in Chat
Open build.nvidia.com

Try free AI on this site

13 models have a free API on OpenRouter today. Our Try and compare page sends one prompt to two of them: you connect your free OpenRouter account in one click, and your prompts go from your browser straight to OpenRouter. We never see your key or your messages.

Gemma 4 31B

Arena chat score 1452 · #77 of 419
Free API · try it Model page

Inkling

Arena chat score 1442 · #92 of 419
Free API · try it Model page

Gemma 4 26B A4B

Arena chat score 1438 · #101 of 419
Free API · try it Model page

NVIDIA-Nemotron-3-Ultra-550B-A55B (NVFP4)

Arena chat score 1427 · #120 of 419
Free API · try it Model page

NVIDIA-Nemotron-3.5-Super-VL-120B-A12B (NVFP4)

Arena chat score 1412 · #150 of 419
Free API · try it Model page

Inkling-Small

Arena chat score 1406 · #158 of 419
Free API · try it Model page

NVIDIA-Nemotron-3.5-Lightning-30B-A3B (NVFP4)

Arena chat score 1353 · #217 of 419
Free API · try it Model page

Free AI on your phone and your PC

Small open models can also run on your own phone or computer, for free and fully private.

Free AI on your phone

Small open models that run offline on a phone, how much memory they need and which free apps run them.

Free AI on your PC

Pick your graphics card and see which top-voted open models fit, how the memory splits and how fast they write. See also how much GPU memory you need.

What “free” usually costs you

無料枠は、開発者を呼び込むために存在します。プロバイダーによっては、無料枠のプロンプトをモデルの改良に使うことがあるため、プライベートな内容を送る前に利用規約をお読みください。自宅でモデルを動かすのは、何もパソコンの外に出ない唯一の方法です。

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