Google's AI research tool, completely free. Up to 50 sources per notebook, auto-generates podcasts, video overviews, reports. Most underrated free AI tool of 2026.

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.

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.

By Anthropic, known for safety and long-context processing. Free tier has daily message limits. Pro users access Claude Code for terminal-based coding. Top coding performance across multiple 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).

Sapiens AI's (Singapore) full-modality AI platform. Free Access tier: use frontier models for free. Text (Agnes 2.0 Flash, Claw-Eval #9 globally), Image (Agnes Image 2.0 Flash), Video (Agnes Video V2.0). Basic TPS limit, fair-use quota. Paid Token Plan for higher TPS and quotas.

DeepSeek'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.

By Moonshot AI, Kimi K2.6 focuses on coding and agent capabilities. 13-hour non-stop coding, 300 sub-agents in parallel, SWE-Bench Pro score of 58.6. Free tier includes daily credits for chat and light coding tasks.

AI search engine: search + read + summarize in one step. Free tier with limited daily Pro searches, unlimited basic search. Pro $20/mo. Best source transparency.

Google's AI assistant with Search integration. Free tier introduced weekly percentage caps in May 2026. Paid from $19.99/month.

Cline's official API platform. 3 free models (MiniMax-M3, Xiaomi MiMo-v2.5, DeepSeek-V4-Flash) all with 1M context. OpenAI compatible. $0.5 signup bonus, free models don't consume credits. Google/GitHub login, no credit card.

Alibaba Cloud's LLM platform (DashScope) with 130+ models via unified API. New users get 1M free tokens per model, covering Qwen series, vision models, Tongyi Wanxiang image generation. All models share one API key, OpenAI compatible.

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.

ByteDance's AI assistant. Basic features are free, but recent controversy over charging has eroded user trust. Free tier still includes AI image generation.

iFlytek's one-stop LLM platform aggregating Spark, DeepSeek, Qwen models. Currently offering free unlimited access to Qwen3.6-35B-A3B and Qwen3.5-35B-A3B until end of June. Supports API calls via CC Switch for Claude Code, Codex integration.

SenseTime's LLM platform. Token Plan beta is completely free: 1500 calls per 5 hours. Supports native multimodal Flash-Lite (no vision-to-text conversion), U1-Fast, and DeepSeek-V4-Flash. OpenAI SDK compatible, no credit card needed.

Alibaba Cloud's largest open-source AI model community in China with 50K+ models. 2000 free API calls daily, OpenAI SDK compatible. Supports Qwen, DeepSeek, GLM, Baichuan and more. Requires Alibaba Cloud account binding.

AI API relay platform. $5 credits on registration, 1 month Pro on email verification. Self-developed FRE-5.4/5.5 models. OpenAI and Anthropic API compatible. Alipay/WeChat Pay supported. Referral: both get $10.

Free AI API gateway with 50+ models. One Discord account gets a key for GPT-5, Claude 4.5, DeepSeek R1, Gemini 3.0, Grok 4 and more. OpenAI compatible, no credit card, 30 req/min rate limit, no daily cap.

Enterprise LLM aggregation platform with unified API for 200+ models (GPT-4o, Claude, Gemini, Qwen, etc.). Intelligent routing automatically selects the best model, with unique AI Model Insurance to eliminate hallucination risk. Compatible with OpenAI/Anthropic/Google protocols.