AI BriefingOpen Models Overtake
·2026.04.10 15:34
Key point
GLM-5.1 drew attention with a SWE-Bench Pro score of 58.4 and pricing of $1.4/$4.4.
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Details
GLM-5.1 is introduced as having scored 58.4 on SWE-Bench Pro, surpassing Opus 4.6 (56.7).
It is licensed under Apache 2.0, and it claims to build an app all the way through using an 8-hour fully autonomous agent loop.
- API pricing: Input $1.4 / Output $4.4
- Key point: the performance gap with commercial coding models is small, while the cost is much lower
- Comment reactions: mixed responses, with benchmaxxing criticism and doubts about real-world practicality on one side, and views that it's useful for long, repetitive tasks on the other
Ultimately, the question is how quickly open models are shaking up the cost logic of commercial APIs in the coding agent market.
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