maritaca-ai/S5-nano
image-text-to-text model by maritaca-ai
From the publisher
Model card & documentation
Source previewRead the publisher’s intended use, setup instructions, evaluations and limitations. The original model card is the source of truth.
S5-nano is a 4B-parameter model from Maritaca AI. It has two modes: The context window supports up to 262,144 tokens, and the weights include an MTP (multi-token prediction) layer for speculative decoding. FP8 is recommended for GPUs with native FP8 support (Ada, Hopper, and Blackwell). The GGUF repository provides BF16, Q80, and Q4KM variants. Explore the results in Observatório Maritaca Results for the original S5-nano checkpoint, evaluated in BF16 on text tasks. Each primary metric is weighted equally. Model Mode Native BR Translated PT Non-native Total Coverage Think S5-nano 🇧🇷 Think 83.74 86.94 54.11 75.25 23/23 Qwen3.5-4B Think 72.49 87.61 54.82 68.68 23/23 LFM2.5-24B-A2B Think 69.68 87.30 56.45 67.06 23/23 Nemotron 3.5 Bolt E4B Think 71.42 84.92 50.78 64.95 23/23 Gemma 4 E4B Think 71.64 83.82 47.22 63.68 23/23 LFM3-1.7B Think 57.60 74.76 50.71 57.94 23/23 Lumi 4B 🇧🇷 Think 52.68 52.50 33.97 44.77 23/23 Tucano2-qwen-3.7B 🇧🇷 Think 34.83 46.12…
Read the full model card ↗ · Preview checked 2026-11-08T09:41:33.725Z
Inside the original model card — Document outline
- S5-nano
- Versions
- Evaluation results
- Averages
- Results by benchmark
- S5-nano evaluation setup
- Recommended generation parameters
- Serving with vLLM
- Requests with curl
- Requests with the OpenAI library
- Serving with llama.cpp
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Documentation belongs to its respective authors. Reported project/model license: apache-2.0. A listing is not a grant of reuse or training rights. Confirm the document’s own terms at the source.
Model overview
maritaca-ai/S5-nano is a image-text-to-text model repository published by maritaca-ai on Hugging Face. The source reports the transformers library.
This page summarizes Hub metadata. For intended use, training data, evaluation results and limitations, consult the original model card.
Model facts
- Task
- image-text-to-text
- Library
- transformers
- Recent downloads (30 days)
- 263
- Cumulative likes
- 57
- Hugging Face trending score
- 56
- Reported safetensors parameters
- 4,659,865,088
- Architecture
- Qwen3_5ForConditionalGeneration
- License
- apache-2.0
- Access
- Not gated by Hugging Face
- Created
- 2026-11-02T13:34:24.000Z
- Last modified
- 2026-11-06T18:30:33.000Z
Compatibility and lineage
Reported languages: pt, en
Base-model lineage was not included.
Parameter count is not a RAM/VRAM requirement. Check precision, quantization, context length and runtime compatibility in the model card; no hardware or API-cost claim is inferred here.
Use and evaluate
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Source and freshness
Source: Hugging Face Hub. Metadata observed 2026-11-08T06:53:26.831Z. Daily imports are snapshots, not real-time monitoring.
Popularity and source listings do not establish security, suitability, licensing rights or benchmark performance.