14 free models — zero cost, zero credit card
Izzi API includes 14 AI models that are completely free to use. Sign up, get your API key, and start building — no deposit required.
Complete free model list
| Model | Provider | Context | Strength |
|---|---|---|---|
| ⭐ Qwen3.6 Plus | OpenRouter | 131K | Best overall — coding + reasoning |
| Devstral 2 | OpenRouter | 128K | Code generation specialist |
| Nemotron 3 Super | OpenRouter | 128K | Strong reasoning |
| Qwen3 235B | Cerebras | 128K | Massive MoE, very smart |
| Llama 3.3 70B | Cerebras | 128K | Fast, versatile |
| DeepSeek R1 | OpenRouter | 128K | Reasoning + code |
| DeepSeek V3 | OpenRouter | 128K | General purpose |
| Llama 4 Maverick | OpenRouter | 128K | Meta's latest |
| Mistral Small 3.1 | OpenRouter | 96K | Lightweight, fast |
| Qwen3 4B | OpenRouter | 40K | Ultra-lightweight |
| Gemma 3 27B | OpenRouter | 96K | Google, multilingual |
| Step 3.5 Flash | StepFun | 256K | Longest context |
| GLM 4.5 Air | Z.ai | 128K | Fast, Chinese-origin |
| Nemotron 3 Nano 30B | NVIDIA | 256K | NVIDIA, 256K context |
Quick setup
Bash
# Set your API key
export OPENAI_API_KEY="izzi-YOUR_KEY"
export OPENAI_BASE_URL="https://api.izziapi.com/v1"
# Test with the best free model
curl $OPENAI_BASE_URL/chat/completions \
-H "Authorization: Bearer $OPENAI_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "qwen3.6-plus-free", "messages": [{"role": "user", "content": "Hello!"}]}'Which free model should you use?
| Task | Recommended model | Why |
|---|---|---|
| Code generation | Qwen3.6 Plus | Best coding + reasoning |
| Quick Q&A | Llama 3.3 70B | Fast on Cerebras |
| Long files | Step 3.5 Flash | 256K context |
| Documentation | Qwen3 235B | Strong writing |
| Simple tasks | Qwen3 4B | Ultra fast, lightweight |
Free tier limits
- 📊 10M tokens/month — enough for ~3,000 conversations
- 📊 10 RPM — 10 requests per minute
- 📊 1 concurrent — 1 request at a time
- 📊 Auto-resets at the start of each month
Need more? Upgrade to Starter ($10/month) for unlimited free models, 30 RPM, and 2 concurrent requests.
Build a free fallback chain
Configure multiple free models as fallbacks for maximum reliability:
JSON
{
"model": "qwen3.6-plus-free",
"fallbacks": [
"qwen3-235b",
"llama-3.3-70b",
"devstral-2-free"
]
}Get started
Sign up at izziapi.com, grab your API key, and start using 14 free models immediately. When you need premium models like Claude or GPT-5, deposit just $1 to get $6 total (with the +$5 bonus).