MiniMax vs. OPT
LLM Comparison
MiniMax
Overview
MiniMax is an open-weight model family spanning language, reasoning, multimodal, and agentic workloads. MiniMax M3 is the current generation.
MiniMax introduced the open MiniMax-01 series in January 2025 and followed it with the M1 and M2 reasoning and agent models. MiniMax M3, released in June 2026, is a 428B-parameter mixture-of-experts model with about 23B active parameters. It combines native image and video understanding, a one-million-token context window, sparse attention, computer use, coding, and long-horizon agent capabilities.
Initial release: 2025-01-15
Current generation: MiniMax M3
OPT
Overview
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 It has since been superseded by models such as LLaMA, GPT-J, and Pythia.
Initial release: 2022-05-03
Further Reading
MiniMax |
OPT |
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|---|---|---|
| Products & Features | ||
| Instruct Models | ||
| Coding Capability | ||
| Customization | ||
| Finetuning | ||
| Open Source | ||
| License | MiniMax Community | NA |
| Model Sizes | 428B (23B active) | 1.3B, 2.7B, 6.7B, 13B, 30B, 66B, 175B |