Xiaomi's AI coding agent forked from OpenCode, open-sourced under MIT. The killer feature is the built-in MiMo Auto channel — zero config, free for 1 month, runs MiMo-V2.5 with 1M token context. Coding performance is on par with Claude Sonnet 4.6 on SWE-Bench, but 40-60% more token-efficient. Highlights: cross-session memory, voice input, auto knowledge distillation. After the free period, you need a Token Plan subscription.
ChatGPT
OpenAI's flagship product, the most widely used AI chatbot globally. Free tier uses GPT-4o mini, Plus users access GPT-4o and o3 reasoning models. Covers chat, image generation, coding, and data analysis.
🆓 Free Tier Details
Daily RefreshFree Credits
4 and GPT Image 2 available via free channels
Resets daily
Credit Card
✅ Not Required
Watermark
✅ No watermark
Commercial Use
✅ Allowed
Resolution: N/A
Last verified: 2026-06-05
👍👎 Pros & Cons
✅ Pros
- +Largest user base, most mature ecosystem
- +Free tier is already powerful for daily use
- +Full multimodal capabilities
- +Massive GPTs marketplace
- +Rich plugin and tool ecosystem
❌ Cons
- -Limited GPT-4o usage on free tier
- -o1 reasoning model requires Plus ($20/month)
- -Free users may queue during peak hours
- -Requires VPN in some regions
🎯 Key Features
💡 Tips & Tricks
- 1Don't upgrade to Plus if free tier meets your needs
- 2Custom GPTs dramatically boost efficiency for specific tasks
- 3Upload files for analysis instead of copy-pasting
🔗 Related LLM Tools
DeepSeek
3.5DeepSeek's flagship model, the cost-performance king of Chinese AI. V4 is free to use, API pricing is 1/10th of GPT-4o. Excellent at coding and math, competitive with closed-source models in benchmarks.
Alibaba's model family, from lightweight 0.5B to flagship 235B. Qwen3 series is the all-rounder among open-source models. Free to use, cheap API. Supports multimodal (text, image, video, code).
Baidu's flagship AI assistant, one of the earliest Chinese LLM developers. ERNIE 4.5 has strong capabilities, excelling at deep search and document processing. Free tier is sufficient, deeply integrated with Baidu search.
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