Inkling debuts at #9 among open-weight models in Agent Arena
arena · x · 2026-07-21
Inkling by Thinking Machines debuts at #9 among open-weight models and #30 overall in Agent Arena.
- It is described as the best open model from the US for long-running agentic tasks, and the only US model in the top 10 open-weight field.
- Weaknesses: user sentiment is poor (-18.0%, #38), steerability is weak (#35), and task completion is only #29.
- Bright spot: it does relatively well at recovering from CLI errors (+6.4%, #16).
- The post notes that if Kimi K3 weights ship on schedule by July 27, it could take the top open-weight slot.
Related event: Thinking Machines' Inkling Debuts at 9th in Open-Weight on Agent Arena(3 posts)→
More from Models
- Grok 4.5 is now free inside Cursor, the popular AI coding IDE — mark_k · 2026-07-21
- GPT often converges on the same near-miss ideas in math problems — yacineMTB · 2026-07-21
- Eno Reyes says model distillation is basically unstoppable — LangChain · 2026-07-21
- Sakana says multiple diffusion models plus MCTS beat test-time scaling on coding and math — SakanaAILabs · 2026-07-21
- OpenAI hackathon project stalls as Codex struggles on voice, while Claude spots the issue — ColleenMBrady · 2026-07-21
- Kimi K3 lands exactly on China’s 2-year AI capability trend line — peterwildeford · 2026-07-21