GPT-5 vs Gemini 3: Which AI Model Leads in 2026?
Compare OpenAI GPT-5 and Google Gemini 3 on intelligence, speed, cost, and multimodality. Discover which model best fits your AI chatbot.
GPT-5 (OpenAI)
OpenAI's latest flagship model with improved reasoning, multi-modal processing, and longer context than GPT-4o.
Gemini 3 (Google)
Google's latest generation AI model with a context window up to 2M tokens, native multimodality, and deep integration into Google services.
Comparison table
| Feature | GPT-5 (OpenAI) | Gemini 3 (Google) |
|---|---|---|
| Context window | Up to 128K tokens | Up to 2M tokens — by far the longest |
| Multimodality | Text, image, audio, video | Text, image, audio, video — natively multimodal |
| Reasoning | Strong — chain-of-thought and tool use | Strong — with improved logical reasoning |
| Speed | Good, GPT-5 mini very fast | Flash variant extremely fast and cheap |
| Ecosystem | Broadest tooling — ChatGPT, Assistants API, plugins | Google integration — Search, Workspace, Android |
Verdict
GPT-5 has the strongest ecosystem and broadest tooling. Gemini 3 excels in context length and cost efficiency via Flash. For chatbots, both perform excellently — the choice depends on your specific needs and budget constraints.
Our recommendation
OpenClaw Installeren supports both models. We recommend GPT-5 mini or Gemini Flash as a cost-effective default for most chatbot applications. For complex analyses or long documents, Gemini 3 Pro is unmatched thanks to the 2M-token context window.
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