Guanaco (33B) overview
Guanaco (33B) by University of Washington NLP
The Guanaco-33B is an open-source, high-quality chatbot model developed by finetuning LLaMA on OASST1 using 4-bit QLoRA. It is intended for research purposes.
Guanaco (33B) specs
- Developer
- University of Washington NLP
- Input
- Text
- Output
- Text
- API
- OpenAI-compatible, base URL
https://api.aimlapi.com/v1
Guanaco (33B) Description
- Developer/Creator: Tim Dettmers
Overview
The Guanaco-33B is an open-source, high-quality chatbot model developed by finetuning the 33B parameter LLaMA mode using 4-bit QLoRA. It is competitive with commercial chatbots like ChatGPT on benchmarks.
Key Features
- Trained on the multilingual OASST1 dataset, with best performance in high-resource languages
- Finetuned using 4-bit QLoRA with NormalFloat4 datatype for the base model and adapters
- Lightweight adapter-only checkpoints, allowing cheap local experimentation
Intended Use
The Guanaco-33B model is intended for research purposes and may produce problematic outputs. It is available under the Apache 2 license, but requires access to the LLaMA model weights which have additional licensing requirements.
Language Support
The Guanaco-33B model supports multiple languages, with best performance in high-resource languages due to the composition of the OASST1 dataset used for finetuning.
Training Data
The model is finetuned on the OASST1 dataset, a multilingual dataset of open-source assistant conversations. The size and diversity of the dataset allow the model to engage in open-ended conversations on a wide range of topics.
Use cases
- building advanced multilingual chatbots for customer service and educational purposes
- research and experimentation in instruction-tuned large language models
- generating natural and detailed multi-turn conversational dialogues
- role-playing and storytelling applications
- multilingual translation and language understanding tasks
- deployment on mid-to-high end consumer GPUs and research servers for real-time AI applications
- fine-tuning and adapting to domain-specific tasks
Capabilities
- Function calling
- Streaming
- Structured outputs
Guanaco (33B) API pricing
| Usage | Price | Unit |
|---|---|---|
| Input | $0.84 | 1M tokens |
| Output | $0.84 | 1M tokens |
Guanaco (33B) is deprecated on AI/ML API. The rates apply to existing integrations; the models below are current alternatives.
Prices from the AI/ML API price list, checked on Nov 4, 2026.
Guanaco (33B) vs other models: token prices
AI/ML API input and output rates for 5 models, per million tokens.
| Model | Input | Output |
|---|---|---|
| $0.84 | $0.84 | |
| $0.2116 | $0.7935 | |
| Mercury 2 | $0.2645 | $0.7935 |
| $0.2116 | $0.8464 | |
| Skyfall 36B V2 | $0.5819 | $0.8464 |
Related articles
Guanaco (33B) FAQ
Does Guanaco (33B) support streaming?
Yes, Guanaco (33B) can stream responses as they are generated.
Does Guanaco (33B) support tool calling and structured outputs?
Yes, Guanaco (33B) supports both function calling and structured outputs.
Who created Guanaco (33B)?
Guanaco (33B) was built by University of Washington NLP.

