Google Gemma 4 開源模型完整解析:Apache 2.0 授權、多模態、140+ 語言支援 | Google Gemma 4: The Most Capable Open-Source AI Model Under Apache 2.0
By Kit 小克 | AI Tool Observer | 2026-04-09
🇹🇼 Google Gemma 4 開源模型完整解析:Apache 2.0 授權、多模態、140+ 語言支援
Google Gemma 4 在 2026 年 4 月 2 日正式發布,是 Google DeepMind 迄今最強的開源 AI 模型系列。這次最大的突破是全系列採用 Apache 2.0 授權,意味著任何人都能免費商用、修改、再發布,沒有任何限制。對開發者和企業來說,這是一個里程碑式的改變。
Gemma 4 有哪些型號可以選?
Gemma 4 提供四種尺寸,從邊緣裝置到伺服器部署都能覆蓋:
- E2B(Effective 2B):手機和 IoT 裝置專用,搭配 LiteRT-LM 可在 Pixel、Raspberry Pi 上跑
- E4B(Effective 4B):輕量級桌面應用,適合本地部署
- 26B MoE:混合專家架構,Arena AI 排行榜全球第 6,推理速度快
- 31B Dense:最強版本,Arena AI 排行榜全球第 3,適合需要最高品質的場景
Gemma 4 跟 Llama 3、Mistral 比起來如何?
Gemma 4 31B 目前在 Arena AI text leaderboard 排名全球第 3,是開源模型中最強的之一。跟 Meta Llama 3 相比,最大差異是授權條款——Llama 3 有使用限制(月活超過 7 億需要額外授權),而 Gemma 4 完全沒有限制。跟 Mistral 相比,Gemma 4 的多模態能力更強,原生支援影片和圖片處理。
Gemma 4 的多模態能力有什麼特別的?
所有 Gemma 4 模型都原生支援影片和圖片輸入,支援可變解析度。邊緣版本有 128K context window,大型版本最高 256K。更重要的是,Gemma 4 原生訓練支援超過 140 種語言,包括繁體中文,這對亞洲市場的開發者非常友善。
開發者怎麼開始用 Gemma 4?
Gemma 4 已經上架 Hugging Face、Ollama、Kaggle 和 Google Cloud Vertex AI。最快的入門方式:
- 本地跑:用 Ollama 下載,一行指令就能跑 E2B 或 E4B
- 雲端部署:Google Cloud Vertex AI 提供一鍵部署,支援 GPU 自動縮放
- 邊緣裝置:搭配 Google LiteRT-LM 框架,可部署在手機、Chromebook、智慧手錶
對 AI 開源生態的影響
- 商業門檻消失:Apache 2.0 讓新創公司不再需要擔心授權費或使用限制
- 本地 AI 加速:E2B 和 E4B 型號讓手機端 AI 應用變得實際可行
- Meta 面臨壓力:Gemma 4 的效能和授權條款都優於 Llama 3,Meta 需要盡快回應
好不好用,試了才知道。我已經在本地跑了 E4B 版本,中文理解能力確實不錯,推理速度也夠快。如果你在找一個真正免費、無限制的開源模型,Gemma 4 值得認真考慮。
🇺🇸 Google Gemma 4: The Most Capable Open-Source AI Model Under Apache 2.0
Google Gemma 4 launched on April 2, 2026, and it is arguably the most significant open-source AI release this year. The entire model family ships under the Apache 2.0 license — no usage caps, no commercial restrictions, no strings attached. For developers and startups building AI products, this changes everything.
What Sizes Does Gemma 4 Come In?
Gemma 4 offers four variants covering edge devices to server deployment:
- E2B (Effective 2B): Designed for phones and IoT devices, runs on Pixel and Raspberry Pi via LiteRT-LM
- E4B (Effective 4B): Lightweight desktop model for local inference
- 26B MoE: Mixture of Experts architecture, ranked #6 globally on Arena AI leaderboard
- 31B Dense: The flagship — ranked #3 globally on Arena AI text leaderboard
How Does Gemma 4 Compare to Llama 3 and Mistral?
Gemma 4 31B currently sits at #3 on the Arena AI text leaderboard, making it one of the strongest open models available. The key differentiator against Meta Llama 3 is licensing — Llama 3 requires a separate license for apps with 700M+ monthly active users, while Gemma 4 has zero restrictions. Compared to Mistral, Gemma 4 offers stronger native multimodal capabilities with built-in video and image processing.
What Are Gemma 4's Multimodal Capabilities?
Every Gemma 4 model natively processes video and images at variable resolutions. Edge models feature a 128K context window, while larger models support up to 256K tokens. The models are also trained on 140+ languages natively, making them particularly strong for non-English applications.
How Can Developers Get Started with Gemma 4?
Gemma 4 is available on Hugging Face, Ollama, Kaggle, and Google Cloud Vertex AI. Quickest paths:
- Local: Download via Ollama — one command to run E2B or E4B
- Cloud: Vertex AI offers one-click deployment with auto-scaling GPU support
- Edge: Pair with Google LiteRT-LM for deployment on phones, Chromebooks, and smartwatches
Impact on the Open-Source AI Ecosystem
- Zero commercial barriers: Apache 2.0 removes all licensing concerns for startups
- On-device AI becomes real: E2B and E4B make phone-based AI applications practical
- Pressure on Meta: Gemma 4 outperforms Llama 3 on benchmarks with better licensing terms
Try before you judge. I have been running the E4B variant locally, and the multilingual understanding is genuinely impressive, with fast inference to match. If you need a truly free, unrestricted open-source model, Gemma 4 deserves serious consideration.
Sources / 資料來源
- Gemma 4: Byte for byte, the most capable open models — Google Blog
- Welcome Gemma 4: Frontier multimodal intelligence on device — Hugging Face
- Gemma 4 available on Google Cloud — Google Cloud Blog
常見問題 FAQ
Gemma 4 是免費的嗎?
是的,Gemma 4 全系列採用 Apache 2.0 開源授權,任何人都能免費下載、商用、修改和再發布,沒有任何使用限制。
Gemma 4 支援中文嗎?
支援。Gemma 4 原生訓練支援超過 140 種語言,包括繁體中文和簡體中文,中文理解能力相當不錯。
Gemma 4 可以在手機上跑嗎?
可以。E2B(2B 參數)版本專為手機和 IoT 裝置設計,搭配 Google LiteRT-LM 框架可在 Android、iOS 上本地執行。
Gemma 4 跟 ChatGPT 比起來如何?
Gemma 4 31B 在 Arena AI 排行榜排名全球第 3,是開源模型中最強的之一。但它是開源模型,需要自行部署,不像 ChatGPT 是雲端服務。
怎麼下載 Gemma 4?
可以從 Hugging Face、Ollama、Kaggle 或 Google Cloud Vertex AI 下載。用 Ollama 最簡單,一行指令就能在本地執行。
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