What are the hardware requirements for Ouro 1.4B Thinking?

Ouro 1.4B Thinking requires approximately 2.9 GB of VRAM and supports a context window of 64K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Ouro 1.4B Thinking and how large is it?

Ouro 1.4B Thinking is developed by ByteDance, a model with 1.4b parameters. The model is published as open weights on Hugging Face and indexed on LLM Explorer with full benchmark history.

How does Ouro 1.4B Thinking perform on standard benchmarks?

Ouro 1.4B Thinking has the following published scores: LMSYS ELO 1466. Compare against reference models on this page or on the LLM Explorer leaderboards.

Ouro 1.4B Thinking by ByteDance — VRAM 2.9GB, 64K context

Name: Ouro 1.4B Thinking
Author: ByteDance

Ouro 1.4B Thinking is an open-source language model by ByteDance. Features: 1.4b LLM, VRAM: 2.9GB, Context: 64K, License: apache-2.0, LLM Explorer Score: 0.41, ELO: 1466.

Arxiv:2510.25741 Chain-of-thought Conversational Custom code Looped-language-model Ouro Reasoning Recurrent-depth Region:us Safetensors Thinking

Model Card on HF 🤗: https://huggingface.co/ByteDance/Ouro-1.4B-Thinking

Ouro 1.4B Thinking Benchmarks

LMSys ELO 1466 vs 1272 (so35) 15.3%

^nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").

What is the LLM Explorer Rank (Score)

Ouro 1.4B Thinking Parameters and Internals

LLM Name	Ouro 1.4B Thinking
Repository 🤗	https://huggingface.co/ByteDance/Ouro-1.4B-Thinking
Model Size	1.4b
Required VRAM	2.9 GB
Updated	2026-08-15
Maintainer	ByteDance
Model Type	ouro
Model Files	2.9 GB
Model Architecture	OuroForCausalLM
License	apache-2.0
Context Length	65536
Model Max Length	65536
Transformers Version	4.55.0
Tokenizer Class	GPT2Tokenizer
Padding Token	<\|im_end\|>
Vocabulary Size	49152
Torch Data Type	bfloat16

Rank the Ouro 1.4B Thinking capabilities

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Instruction Following and Task Automation
Factuality and Completeness of Knowledge
Censorship and Alignment
Data Analysis and Insight Generation
Text Generation
Text Summarization and Feature Extraction
Code Generation
Multi-Language Support and Translation

Best Alternatives to Ouro 1.4B Thinking

Best Alternatives	Context / RAM	Downloads	Likes
Ouro 1.4B	64K / 2.9 GB	31307	110