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GPT-5.6 Sol vs LFM3-1.7B

GPT-5.6 Sol leads the LLM Stats Score 52.7 to 25.0.

OpenAI · Liquid AI · Updated for 2026

Which is better?

GPT-5.6 Sol leads the overall LLM Stats Score 52.7 to 25.0, ranking #13 overall.

In the 3 individual benchmarks reported for both models, GPT-5.6 Sol 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-5.6 Sol

  • overall performance matters — it scores 52.7 and ranks #13 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 2 of 3 exact shared results

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

At a glance

The differences that matter most.

Core performance indexes
52.7
#13
25.0
#191
51.5
#9
20.8
#216
42.5
#11
7.4
#218
38.8
#10
18.1
#97
Cost, coverage & limits
Benchmark wins
2 of 3
1 of 3
Input price
$5.00 / M
— / M
Output price
$30.00 / M
— / M
Context window
1,050,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
GPT-5.6 Sol
LFM3-1.7B
33.9#56
7.6#285
29.1#25
14.3#118
30.8#2
5.1#112
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

46 reported for GPT-5.6 Sol · 20 for LFM3-1.7B

3 shared

GPT-5.6 Sol outperforms in 2 benchmarks (GPQA, Terminal-Bench 2.1), while LFM3-1.7B is better at 1 benchmark (AutomationBench).

GPT-5.6 Sol shows notably better performance in the majority of benchmarks.

Fri Nov 06 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only GPT-5.6 Sol specifies input context (1,050,000 tokens). Only GPT-5.6 Sol specifies output context (128,000 tokens).

OpenAI
GPT-5.6 Sol
Input1,050,000 tokens
Output128,000 tokens
Liquid AI
LFM3-1.7B
Input- tokens
Output- tokens
Fri Nov 06 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

GPT-5.6 Sol supports multimodal inputs, whereas LFM3-1.7B does not.

GPT-5.6 Sol can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-5.6 Sol

Text
Images
Audio
Video

LFM3-1.7B

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5.6 Sol is licensed under a proprietary license, 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-5.6 Sol

Proprietary

Closed source

LFM3-1.7B

LFM Open License v1.0

Open weights

Release Timeline

When each model was launched

GPT-5.6 Sol was released on 2026-07-09, while LFM3-1.7B was released on 2026-10-27.

LFM3-1.7B is 4 months newer than GPT-5.6 Sol.

GPT-5.6 Sol

Jul 9, 2026

4 months ago

LFM3-1.7B

Oct 27, 2026

1 weeks ago

3mo newer

Knowledge Cutoff

When training data ends

GPT-5.6 Sol has a documented knowledge cutoff of 2026-02-16, while LFM3-1.7B's cutoff date is not specified.

We can confirm GPT-5.6 Sol's training data extends to 2026-02-16, but cannot make a direct comparison without LFM3-1.7B's cutoff date.

GPT-5.6 Sol

Feb 2026

LFM3-1.7B

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against GPT-5.6 Sol and LFM3-1.7B side-by-side, then vote on the output you prefer.

GPT-5.6 Sol
✓ Preferred
LFM3-1.7B
Open in Playground

FAQ

Common questions about GPT-5.6 Sol vs LFM3-1.7B.

Which is better, GPT-5.6 Sol or LFM3-1.7B?

GPT-5.6 Sol leads the LLM Stats Score 52.7 to 25.0. GPT-5.6 Sol 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-5.6 Sol compare to LFM3-1.7B in benchmarks?

GPT-5.6 Sol scores Connectors: 100.0%, Capture-the-Flag Challenges (Internal): 96.7%, HealthBench Consensus: 95.5%, GPQA: 94.6%, MRCR v2 (8-needle): 91.5%. 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-5.6 Sol and LFM3-1.7B?

GPT-5.6 Sol supports 1.1M 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-5.6 Sol and LFM3-1.7B?

Key differences include LLM Stats Score (52.7 vs 25.0), multimodal support (yes vs no), licensing (Proprietary vs LFM Open License v1.0). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-5.6 Sol and LFM3-1.7B?

GPT-5.6 Sol is developed by OpenAI and LFM3-1.7B is developed by Liquid AI.