Last updated: 2026-01-31
Best Free AI APIs for OpenClaw
Run your AI assistant without breaking the bank
Want to try OpenClaw without spending money on AI APIs? Good news — several providers offer generous free tiers that work great for personal use. Here's how to run your AI assistant for free (or nearly free).
🏆 Our Top Pick
Google Gemini
Free — Most Generous Free Tier
Detailed Comparison
Google Gemini
Most Generous Free TierFree
60 requests/minute on free tier
Pros
- ✓Truly free for personal use
- ✓60 RPM is plenty for individuals
- ✓1 million token context window
- ✓Good at summarization and analysis
- ✓Vision capabilities included
Cons
- ✗Less capable than Claude/GPT-4 for complex tasks
- ✗Can be inconsistent
- ✗Rate limits may hit power users
Our verdict: Best free option by far. Gemini 1.5 Flash is surprisingly capable and the free tier is generous enough for most personal use cases.
Anthropic Claude (Free Credits)
Best Quality$5 free credit
Then pay-as-you-go
Pros
- ✓Best instruction following
- ✓Excellent for complex tasks
- ✓$5 credit lasts a while with Haiku
- ✓Superior coding and writing ability
Cons
- ✗Free credits run out eventually
- ✗No permanent free tier
Our verdict: Use your free $5 credit wisely — Claude Haiku at $0.25/million input tokens stretches far. Best quality when you need it.
OpenRouter Free Models
Most VarietyFree tier available
Multiple free models
Pros
- ✓One API, many free models
- ✓Try different models easily
- ✓Some enterprise models have free tiers
- ✓Easy to switch between providers
Cons
- ✗Free models less capable
- ✗Rate limits vary by model
- ✗Quality inconsistent across models
Our verdict: Great for experimenting with different models. The Llama and Mistral free options are decent for basic tasks.
Groq (Free Tier)
FastestFree
Rate limited, Llama models
Pros
- ✓Incredibly fast responses
- ✓Free Llama 3.1 70B access
- ✓Good for quick tasks
- ✓Low latency
Cons
- ✗Strict rate limits on free tier
- ✗Only open-source models
- ✗May hit limits with heavy use
Our verdict: When you need speed. Llama 3.1 70B on Groq is blazing fast and free. Great for simple, quick interactions.
Mistral (Free Tier)
European OptionFree tier available
Limited requests
Pros
- ✓Strong European-built models
- ✓Good multilingual support
- ✓Competitive with GPT-4 on many tasks
- ✓Privacy-focused company
Cons
- ✗Free tier is limited
- ✗Smaller context than competitors
- ✗Newer, less battle-tested
Our verdict: Good option for European users or those who want French-built AI. Free tier works for light use.
Local LLMs (Ollama)
Truly Free ForeverFree
Requires local hardware
Pros
- ✓Completely free, no limits
- ✓Total privacy — runs on your machine
- ✓Works offline
- ✓No API keys or accounts needed
Cons
- ✗Requires decent hardware (8GB+ RAM)
- ✗Slower than cloud APIs
- ✗Less capable than top cloud models
- ✗Setup required
Our verdict: The truly free option. If you have a Mac with 8GB+ RAM or a PC with a decent GPU, Llama 3.1 8B runs well locally.
Quick Recommendations
Best for best-free
Google Gemini — most capable free tier
Best for best-quality
Claude with Haiku — stretch your $5 credit
Best for fastest
Groq — blazing fast Llama 3.1
Best for most-private
Ollama — runs completely locally
Best for most-flexible
OpenRouter — try multiple models
Frequently Asked Questions
Can I really run OpenClaw completely free?
Yes! With Google Gemini's free tier or a local model via Ollama, you can run OpenClaw without paying for AI APIs. You'll still need a server (~$5/mo) or run it on your own computer.
How long will the Claude $5 credit last?
With Claude Haiku ($0.25/million input tokens), $5 gets you roughly 20 million input tokens — that's about 2-3 months of moderate personal use. Heavy users will burn through it faster.
Is Gemini good enough for real use?
For most personal assistant tasks — scheduling, reminders, email drafts, simple research — Gemini 1.5 Flash works great. For complex reasoning or coding, Claude or GPT-4 are noticeably better.
What's the catch with free tiers?
Rate limits are the main catch. Free tiers limit requests per minute/day. For personal use (10-50 messages/day), you'll rarely hit limits. Power users may need paid plans.
Can I combine free tiers?
Yes! OpenClaw supports model routing. Use Gemini for simple tasks (free), Claude Haiku for moderate tasks (cheap), and GPT-4 only when you really need it.
The Bottom Line
Start with Google Gemini's free tier — it's genuinely capable and costs nothing. When you need more power, Claude Haiku is incredibly cheap ($0.25/million input tokens). For complete privacy and zero ongoing cost, run Ollama locally if you have the hardware.
Start Setting Up OpenClaw →