Muse Spark
Meta's new proprietary flagship — closed-weight, agentic-first
Verdict
Meta's Superintelligence Labs shipped this as a genuinely new direction, not a Llama update — closed-weight, built explicitly for multi-agent orchestration (as either the planning agent or a delegated subagent), with a 1M-token context window and text/image/video/audio/PDF input. The 1.2 update (Aug 5, 2026) added a dedicated coding focus plus Muse Code, a terminal agent. The real tradeoff: you lose everything that made Llama useful for self-hosting — no local deployment, no fine-tuning, no community variants. Pick this for Meta's agentic capability specifically; pick Llama if open weights still matter to you.
Other Text Generation & Reasoning
- GPT-5.6Production
OpenAI current flagship — Sol/Terra/Luna tiers, 1.05M context
- GPT-5Superseded
OpenAI's previous flagship — superseded by GPT-5.6
- GPT-5 miniProduction
OpenAI's cost-efficient GPT-5-tier model — most of the quality at a fraction of the cost
- GPT-4oProduction
OpenAI previous-gen multimodal model — text, vision, audio
- GPT-4o miniStable
OpenAI's previous-gen cost-efficient model — superseded by GPT-5 mini
- GPT-OSS 120BStable
OpenAI's first open-weight model — 120B params, fully downloadable