Free AI models — 19 with $0 pricing

19 models with $0 input and $0 output pricing, sorted by context window (largest first).

Token Price Index › Browse › Free AI Models

19 models with $0 input and $0 output pricing right now. Sorted by context window — largest first. Free tiers can be rate-limited or withdrawn; subscribe to be notified of changes.

Subscribe — $9/mo
Under $1/MEnterprise modelsBrowse all
ModelContextInput $/MOutput $/MBlended $/M
Thinking Machines: Inkling Small (free)visionfree
thinkingmachines
1,048,576FreeFreeFree
Thinking Machines: Inkling (free)visionfree
thinkingmachines
1,048,576FreeFreeFree
Google: Lyria 3 Pro Previewvisionfree
google
1,048,576FreeFreeFree
Google: Lyria 3 Clip Previewvisionfree
google
1,048,576FreeFreeFree
MiniMax: MiniMax M3.1 Flash (free)visionfree
minimax
1,000,000FreeFreeFree
NVIDIA: Nemotron 3.5 Super VL (free)visionfree
nvidia
1,000,000FreeFreeFree
NVIDIA: Nemotron 3.5 Lightning (free)free
nvidia
1,000,000FreeFreeFree
NVIDIA: Nemotron 3 Ultra (free)free
nvidia
1,000,000FreeFreeFree
Dots Studio: Dots3-Note Preview (free)visionfree
dots-studio
512,000FreeFreeFree
XingChen: Xing4.0 29B A4B (free)free
xingchen-agi
262,144FreeFreeFree
Poolside: Laguna S 2.1 (free)free
poolside
262,144FreeFreeFree
Poolside: Laguna XS 2.1 (free)free
poolside
262,144FreeFreeFree
Google: Gemma 4 26B A4B (free)visionfree
google
262,144FreeFreeFree
Google: Gemma 4 31B (free)visionfree
google
262,144FreeFreeFree
NVIDIA: Nemotron 3 Super (free)free
nvidia
262,144FreeFreeFree
Cohere: North Mini Code (free)free
cohere
256,000FreeFreeFree
NVIDIA: Nemotron 3 Nano Omni (free)visionfree
nvidia
256,000FreeFreeFree
NVIDIA: Nemotron 3.5 Content Safety (free)visionfree
nvidia
128,000FreeFreeFree
LiquidAI: LFM2.5-2.6B (free)free
liquid
65,536FreeFreeFree

Frequently asked questions

Are free AI models really free?
Yes — these models report $0 for both input and output tokens via the OpenRouter API. Providers offer free tiers for promotion or research access. Rate limits may apply; check each provider's terms.
How many free AI models are available right now?
There are 19 models with $0 input and $0 output pricing listed right now, sorted by context window size (largest first) so you can find the most capable free model quickly.
Will these models stay free?
Free tiers can be withdrawn at any time. Subscribe to price-drop alerts to be notified if a model you rely on starts charging.
What's the catch with free models?
Free models are typically rate-limited, may have smaller context windows, and can be deprecated without notice. For production workloads, a cheap paid model is usually more reliable.

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Subscribe — $9/mo
Data: OpenRouter public model API, normalized to $/1M tokens. Blended = (3×input + output)/4. Generated 19 Oct 2026 22:00 UTC. Prices change often — confirm on the provider before committing spend.