Reasoning Tools Open weights

Reasoning-optimized 398B MoE agent model with extended thinking for long-horizon and multi-turn tool use

arcee-ai/trinity-large-thinking 2026-04-01 524.288K context $0.25/M input $0.9/M output
5 providers
Tools Open weights

Lightly post-trained 398B MoE chat model for creative work, long-context prompts, and tool-using agents

arcee-ai/trinity-large-preview 2026-01-27 524.288K context Input not listed Output not listed
1 provider
Open weights

Experimental chat-tuned 6B MoE model with 1B active parameters for low-resource chat and instruction following

arcee-ai/trinity-nano-preview 2025-12-01 131.072K context Input not listed Output not listed
Reasoning Tools Open weights

Reasoning-tuned 26B MoE model with 3B active parameters for agents, tools, and multi-step workloads

arcee-ai/trinity-mini 2025-12-01 131.072K context $0.045/M input $0.15/M output
2 providers