What is GLM-5.1 and SWE-Bench Pro?

GLM-5.1's an open MoE model topping charts; SWE-Bench Pro tests AI on real GitHub bug fixes.

Does GLM-5.1 beat GPT-5.4 everywhere?

Leads on coding benches like SWE-Bench, but trails slightly on chat evals — pick your poison.

Can I use GLM-5.1 for free in my apps?

MIT license, yes — host yourself or via APIs at steep discounts.

GLM-5.1 Crushes SWE-Bench Pro: Outcodes GPT-5.4, Claude at a Fraction of the Cost

Everyone figured closed giants like OpenAI and Anthropic owned coding AI forever. Then GLM-5.1 — open, cheap, MIT-licensed — hits #1 on SWE-Bench Pro, rewriting the script.

theAIcatchup Apr 10, 2026 4 min read

GLM-5.1 benchmark chart outperforming GPT-5.4 and Claude Opus 4.6 on SWE-Bench Pro

⚡ Key Takeaways

GLM-5.1 tops SWE-Bench Pro with MoE efficiency, beating closed rivals. 𝕏
7.8x cheaper inference flips economics for devs and startups. 𝕏
Open-source surge predicts shift to self-hosted coding agents. 𝕏

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#GLM-5.1 #MoE models #SWE-Bench Pro #coding benchmarks #open-source AI

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Originally reported by Towards AI

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