AI Models · Open-Source Alternatives

Open-Source Alternatives to GPT-6 Luna

The best open-weight, self-hostable alternatives to GPT-6 Luna in 2026 — compared on price, context window and capabilities. Run them locally and cut API costs.

Refreshed from live data · olud.ai

The best open-weight alternatives to GPT-6 Luna

GPT-6 Luna is a proprietary, API-only model. These open-weight models can be self-hosted, run offline and used at a fraction of the cost — here's how the top ones stack up.

MiniMax M3.1 Flash (free) Open

MiniMax · 1M ctx · Free/M out

4.6 pts ABOVE GPT-6 Luna on the Artificial Analysis intelligence index

MiniMax-M3.1-Flash is a multimodal model from MiniMax. Compared with M3, it delivers significant improvements across multiple benchmarks, particularly in complex agentic tasks, coding, and cybersecurity. It is built for complex,...

MiniMax M3.1 Flash (free) vs GPT-6 Luna →

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Live ranking of open-weight models with pricing, context windows and capabilities.

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