Open Source AI — run it local, escape every limit
Rate limits, paywalls and shrinking free tiers all have one thing in common: a server counting your messages. Open source removes the counter — the model runs on your machine, free forever. The third pillar of Pivvi: hosted free picks, free flows, and the tier that can never be taken away.
Not sure whether to run local or grab the best free hosted AI? Paste your prompt and Pivvi routes you — free first, always.
Try Pivvi free →What hardware do I need?
| Model size | Runs on | Feels like |
|---|---|---|
| 3–8B (quantized) | Any modern laptop, 8–16GB RAM — no GPU needed | Usable chat; great for drafts & summaries |
| 13–34B | 16GB+ unified memory (Apple Silicon) or 12GB+ GPU | Where local starts feeling premium |
| 70B-class | 32GB+ unified memory or a 24GB GPU | Near-frontier at home |
Apple Silicon is the smoothest path (unified memory holds big models); NVIDIA is the fastest on Windows/Linux. All the runners above share the same engine, so pick your app by interface, not speed.
Why open source is the limit-proof tier
Every hosted free tier can shrink, add a watermark, or start counting messages — it happens monthly. A local model can't do any of that: there's no account to cap, no reset clock, no “come back after 4:00 PM.” If your hardware runs it, it runs unlimited. That makes open source the only tier of free AI that can never be taken away.
Frequently asked
What is the best free open source AI?
Ollama is the easiest way to run open models like Llama, Qwen and Gemma locally with one command. LM Studio is the friendliest point-and-click option, and Jan is a fully open-source desktop app. All are $0 with no rate limits.
Can I run AI locally for free without limits?
Yes. Open-weight models on your own machine never rate-limit you — there's no server counting your messages. Speed depends on your hardware, not on a plan.
Is open source AI as good as ChatGPT?
The best open-weight models (Llama 4, Qwen 3.5, GPT-OSS, DeepSeek, Gemma 4) are competitive for everyday writing, coding and reasoning; frontier hosted models still lead on the hardest tasks. The trade: local models are unlimited, private and free forever.
Model quality, licenses and hardware requirements change quickly; picks here are community-tested and refreshed regularly. AI names & marks belong to their owners.