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LLM Index

Mistral vs. OPT

A side-by-side comparison of release history, capabilities, licensing and model sizes.

Attribute Mistral OPT
Developer Mistral AI Meta
Current generation Mistral 3 –
Initial release 2023-09-27 2022-05-03
Instruct tuned Yes No
Coding Yes No
Finetuning Yes Yes
Open source Yes Yes
License Apache 2.0 NA
Model sizes 3B, 8B, 14B, 675B (41B active) 1.3B, 2.7B, 6.7B, 13B, 30B, 66B, 175B
Links
Website Pricing
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Mistral

Mistral is a family of efficient open and hosted models spanning edge deployment through frontier-scale multimodal workloads. Mistral 3 is the current generation.

Mistral AI launched Mistral 7B in September 2023 and followed it with the Mixtral mixture-of-experts models and hosted Small and Large tiers. Mistral 3, released in December 2025 under Apache 2.0, includes dense 3B, 8B, and 14B Ministral models plus Mistral Large 3, a 675B-parameter mixture-of-experts model with 41B active parameters. The family supports instruction tuning, reasoning variants, multilingual use, code, and image understanding.

Further reading

OPT

Open Pre-trained Transformer Language Models (OPT) is part of the family of open source models designed to replicate GPT-3, with similar decoder-only architecture. It has since been superseded by models such as LLaMA, GPT-J, and Pythia.

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