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LFM3-1.7B vs Seed 1.8

Seed 1.8 leads the LLM Stats Score 33.6 to 25.0.

Liquid AI · ByteDance · Updated for 2026

Which is better?

Seed 1.8 leads the overall LLM Stats Score 33.6 to 25.0, ranking #122 overall.

In the 4 individual benchmarks reported for both models, Seed 1.8 wins 3; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose LFM3-1.7B

  • you want the most recent training data — it shipped Oct 2026
  • you need open weights you can self-host or fine-tune

Choose Seed 1.8

  • overall performance matters — it scores 33.6 and ranks #122 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 3 of 4 exact shared results

At a glance

The differences that matter most.

LFM3-1.7B
Liquid AI
Seed 1.8
ByteDance
Core performance indexes
LLM Stats Score
25.0
#192
33.6
#122
Reasoning
20.8
#216
33.0
#123
Coding
7.4
#218
19.8
#125
Agents
18.1
#97
14.3
#120
Cost, coverage & limits
Benchmark wins
1 of 4
3 of 4
Input price
— / M
$0.25 / M
Output price
— / M
$2.00 / M
Context window
—
256,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
LFM3-1.7B
Seed 1.8
Math
7.6#285
32.1#67
Tool use
14.3#119
6.3#176
Long context
5.1#112
17.7#43
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

20 reported for LFM3-1.7B · 57 for Seed 1.8

4 shared

LFM3-1.7B outperforms in 1 benchmarks (BFCL-V4), while Seed 1.8 is better at 3 benchmarks (Humanity's Last Exam (with tools, text-only), LiveCodeBench v6, SWE-Bench Verified).

Seed 1.8 shows notably better performance in the majority of benchmarks.

Mon Nov 02 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Seed 1.8 specifies input context (256,000 tokens). Only Seed 1.8 specifies output context (256,000 tokens).

Liquid AI
LFM3-1.7B
Input- tokens
Output- tokens
ByteDance
Seed 1.8
Input256,000 tokens
Output256,000 tokens
Mon Nov 02 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Seed 1.8 supports multimodal inputs, whereas LFM3-1.7B does not.

Seed 1.8 can handle both text and other forms of data like images, making it suitable for multimodal applications.

LFM3-1.7B

Text
Images
Audio
Video

Seed 1.8

Text
Images
Audio
Video

License

Usage and distribution terms

LFM3-1.7B is licensed under LFM Open License v1.0, while Seed 1.8 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

LFM3-1.7B

LFM Open License v1.0

Open weights

Seed 1.8

Proprietary

Closed source

Release Timeline

When each model was launched

LFM3-1.7B was released on 2026-10-27, while Seed 1.8 was released on 2026-02-17.

LFM3-1.7B is 8 months newer than Seed 1.8.

LFM3-1.7B

Oct 27, 2026

5 days ago

8mo newer
Seed 1.8

Feb 17, 2026

8 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against LFM3-1.7B and Seed 1.8 side-by-side, then vote on the output you prefer.

LFM3-1.7B
✓ Preferred
Seed 1.8
Open in Playground

FAQ

Common questions about LFM3-1.7B vs Seed 1.8.

Which is better, LFM3-1.7B or Seed 1.8?

Seed 1.8 leads the LLM Stats Score 33.6 to 25.0. LFM3-1.7B is made by Liquid AI and Seed 1.8 is made by ByteDance. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does LFM3-1.7B compare to Seed 1.8 in benchmarks?

LFM3-1.7B scores IFEval: 96.7%, Multi-IF: 89.1%, LiveCodeBench v6: 73.5%, IFBench: 73.0%, BFCL-V4: 71.4%. Seed 1.8 scores CountBench: 96.3%, AIME 2025: 94.3%, VLMsAreBlind: 93.0%, MMLU: 92.3%, AI2D: 89.1%.

What are the context window sizes for LFM3-1.7B and Seed 1.8?

LFM3-1.7B supports an unknown number of tokens and Seed 1.8 supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between LFM3-1.7B and Seed 1.8?

Key differences include LLM Stats Score (25.0 vs 33.6), multimodal support (no vs yes), licensing (LFM Open License v1.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes LFM3-1.7B and Seed 1.8?

LFM3-1.7B is developed by Liquid AI and Seed 1.8 is developed by ByteDance.

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