Model tracker / Liquid AI
LFM3-1.7B
Open-weight 1.7B text model for local agents, tool calling and structured output
LFM3-1.7B is a fast open-weight model from Liquid AI, released 27 October 2026. At Liquid AI it costs $0.08 per million input tokens and $0.20 per million output tokens, with a 262K-token context window.
- Made by
- Liquid AI
- Released
- 2026-10-27
- Status
- Generally available, new
- Tier
- Fast
- Weights
- Open
- Memory to run
- About 5 GB (BF16)
- Context window
- 262,144 tokens
- Input
- text
LFM3-1.7B price at Liquid AI
US dollars per million tokens. Blended is 3 input tokens for every output token, one number to compare on.
| Provider | Input | Output | Cached input | Blended | Batch | Checked |
|---|---|---|---|---|---|---|
| Liquid AI · maker | $0.08 | $0.20 | $0.02 | $0.11 | – | 2026-10-29 |
- Liquid AI: Liquid API. Context is 256K tokens for input and output combined. No batch price listed.
LFM3-1.7B benchmarks
| Benchmark | Score | What it measures | Reported by |
|---|---|---|---|
| GPQA Diamond | 63.4% | graduate-level science questions answered correctly | Liquid AI |
Scores reported by a model's maker aren't independently checked.
Can you run LFM3-1.7B yourself?
Yes. Liquid AI publishes the weights on Hugging Face as LiquidAI/LFM3-1.7B, under LFM Open License v1.0: 1.73B parameters, 4 GB in BF16.
Running it takes about 5 GB of GPU memory: a single GPU with at least 5 GB of memory, or a Mac with comfortably more than 5 GB. That's the weight files plus 20% for working memory with short inputs; long contexts need more, and fitting in memory doesn't make it fast.
Liquid AI also publishes a smaller MLX 4-bit version, LiquidAI/LFM3-1.7B-MLX-4bit, at 1 GB: about 2 GB to run, so a single GPU with at least 2 GB of memory, or a Mac with comfortably more than 2 GB.
Models like LFM3-1.7B
Other fast models closest in price, at each maker's own price or the cheapest provider.
| Model | Input | Output | Context | Weights |
|---|---|---|---|---|
| LFM3-1.7B | $0.08 | $0.20 | 262K | Open |
| Qwen3.5 9B Alibaba | $0.10 | $0.15 | 262K | Open |
| Ministral 3 3B Mistral AI | $0.10 | $0.10 | 256K | Open |
| NVIDIA Nemotron 3.5 Lightning 30B A3B NVIDIA | $0.06 | $0.16 | 262K | Open |
| Ministral 3 8B Mistral AI | $0.15 | $0.15 | 256K | Open |
| Llama 3.3 70B Meta | $0.10 | $0.32 | 131K | Open |
Compare them all in the model tracker →
LFM3-1.7B FAQ
How much does LFM3-1.7B cost?
LFM3-1.7B costs $0.08 per million input tokens and $0.20 per million output tokens at Liquid AI, and $0.02 per million cached input tokens. Prices are list prices in US dollars, last checked 29 October 2026.
What is LFM3-1.7B's context window?
LFM3-1.7B takes up to 262,144 tokens in one request.
Is LFM3-1.7B open weight?
Yes. Liquid AI publishes the weights, so you can run LFM3-1.7B yourself or at any host that serves it.
Can I run LFM3-1.7B locally?
LFM3-1.7B's weights are 4 GB in BF16, so it needs about 5 GB of GPU memory: a single GPU with at least 5 GB of memory, or a Mac with comfortably more than 5 GB. Liquid AI also publishes a MLX 4-bit version that needs about 2 GB.
Where can I use LFM3-1.7B?
LFM3-1.7B is available from Liquid AI.