Free Tier · verified Nov 4, 2026

OpenRouter: Free-model router and zero-cost model variants

The zero-price listing adds HeyGen Voice Turbo (dated October 26), Recursive Flint, and NVIDIA Nemotron 3.5 Embed 1B and 8B (dated October 21), all absent from the master. Voice Turbo supports 39 languages and up to 5,000 characters per request and is marked as going away November 30; Flint lists 262K context and the embedding models return 2048- and 4096-dimensional vectors respectively.

PrototypingModel TestingOpenAI-compatible

What you actually get

Eligibility
OpenRouter users with access to the relevant API models, subject to account request caps and model availability; own HeyGen key needed for voice clones from the user's account
Rate and usage limits
The free-model cap is account-wide. OpenRouter's limit page is authoritative because caps can change with account credit history.
Models
openrouter/free, Models ending in :free
Card requirement
no
Regions
Global
After the free allowance
Wait for the daily reset, purchase credits to change account limits, or use paid models.
Data and privacy catch
Provider routing and data policies differ by model; use OpenRouter's provider controls for privacy-sensitive workloads.