Google's Gemma 4 open models in five sizesAlternative to
LFM 2.5
Nemotron 3 Nano Omni+6Open source alternatives to LFM2.5-350M
2 open source tools do the job of LFM2.5-350M. About LFM2.5-350M
LFM2.5-350MFree
Gemma 4Apache 2.0CodeAll 2 alternatives
Questions about alternatives to LFM2.5-350M
What is the best open source alternative to LFM2.5-350M?
Gemma 4 is listed first. Choose Gemma 4 when you want audio and image input on a phone; its E2B size loads in about 1.1 GB on mobile, and Google's Gemini API serves it free.
Is there a free alternative to LFM2.5-350M?
Yes. The code of all 2 is public under Apache 2.0, so you can use them with no licence fee. Running one yourself costs the server and your time to look after it, and some makers also sell a hosted plan.
How do I choose between them?
Start from the job you use LFM2.5-350M for. Choose Qwen3.5 Small when you need image or video input, a 262K context or broader knowledge; Qwen3.5-0.8B ships under Apache 2.0 with no revenue limit.
Which LFM2.5-350M alternatives can I host on my own server?
All 2: Gemma 4 and Qwen3.5 Small. Each tool's page says what it needs to run.
What licences do they use?
Apache 2.0 (2). MIT, BSD and Apache let you change and reuse the code freely.
What do I lose by leaving LFM2.5-350M?
The hosting. LFM2.5-350M's maker runs the servers for you; with an open source tool the updates, backups, security fixes and support are yours, unless you take the maker's hosted plan. Features differ too, so check what each one imports and exports before you move your data.