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GPT OSS 20B vs LFM3-1.7B

LFM3-1.7B leads the LLM Stats Score 25.0 to 17.4.

OpenAI · Liquid AI · Updated for 2026

Which is better?

LFM3-1.7B leads the overall LLM Stats Score 25.0 to 17.4, ranking #191 overall.

In the 2 individual benchmarks reported for both models, GPT OSS 20B wins 2; 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 GPT OSS 20B

  • you value its reported benchmark strengths — it wins 2 of 2 exact shared results

Choose LFM3-1.7B

  • overall performance matters — it scores 25.0 and ranks #191 on LLM Stats
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

GPT OSS 20B
OpenAI
LFM3-1.7B
Liquid AI
Core performance indexes
LLM Stats Score
17.4
#254
25.0
#191
Reasoning
14.9
#264
20.8
#216
Cost, coverage & limits
Benchmark wins
2 of 2
0 of 2
Input price
$0.03 / M
— / M
Output price
$0.14 / M
— / M
Context window
131,072
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
GPT OSS 20B
LFM3-1.7B
Math
16.6#219
7.6#285
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

7 reported for GPT OSS 20B · 20 for LFM3-1.7B

2 shared

GPT OSS 20B outperforms in 2 benchmarks (GPQA, Humanity's Last Exam), while LFM3-1.7B is better at 0 benchmarks.

GPT OSS 20B significantly outperforms across most benchmarks.

Thu Nov 05 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

19.2B diff

GPT OSS 20B has 19.2B more parameters than LFM3-1.7B, making it 1108.1% larger.

OpenAI
GPT OSS 20B
20.9Bparameters
Liquid AI
LFM3-1.7B
1.7Bparameters
20.9B
GPT OSS 20B
1.7B
LFM3-1.7B

Context Window

Maximum input and output token capacity

Only GPT OSS 20B specifies input context (131,072 tokens). Only GPT OSS 20B specifies output context (131,072 tokens).

OpenAI
GPT OSS 20B
Input131,072 tokens
Output131,072 tokens
Liquid AI
LFM3-1.7B
Input- tokens
Output- tokens
Thu Nov 05 2026 • llm-stats.com

License

Usage and distribution terms

GPT OSS 20B is licensed under Apache 2.0, while LFM3-1.7B uses LFM Open License v1.0.

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

GPT OSS 20B

Apache 2.0

Open weights

LFM3-1.7B

LFM Open License v1.0

Open weights

Release Timeline

When each model was launched

GPT OSS 20B was released on 2025-08-05, while LFM3-1.7B was released on 2026-10-27.

LFM3-1.7B is 15 months newer than GPT OSS 20B.

GPT OSS 20B

Aug 5, 2025

1.3 years ago

LFM3-1.7B

Oct 27, 2026

1 weeks ago

1.2yr newer

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 GPT OSS 20B and LFM3-1.7B side-by-side, then vote on the output you prefer.

GPT OSS 20B
✓ Preferred
LFM3-1.7B
Open in Playground

FAQ

Common questions about GPT OSS 20B vs LFM3-1.7B.

Which is better, GPT OSS 20B or LFM3-1.7B?

LFM3-1.7B leads the LLM Stats Score 25.0 to 17.4. GPT OSS 20B is made by OpenAI and LFM3-1.7B is made by Liquid AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does GPT OSS 20B compare to LFM3-1.7B in benchmarks?

GPT OSS 20B scores MMLU: 85.3%, CodeForces: 74.3%, GPQA: 71.5%, TAU-bench Retail: 54.8%, HealthBench: 42.5%. LFM3-1.7B scores IFEval: 96.7%, Multi-IF: 89.1%, LiveCodeBench v6: 73.5%, IFBench: 73.0%, BFCL-V4: 71.4%.

What are the context window sizes for GPT OSS 20B and LFM3-1.7B?

GPT OSS 20B supports 131K tokens and LFM3-1.7B supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT OSS 20B and LFM3-1.7B?

Key differences include LLM Stats Score (17.4 vs 25.0), licensing (Apache 2.0 vs LFM Open License v1.0). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT OSS 20B and LFM3-1.7B?

GPT OSS 20B is developed by OpenAI and LFM3-1.7B is developed by Liquid AI.

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