# GLM-5.3 Vs. GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing

> **Platform:** [SPIDITS AI](https://spidits.com/) — Real-Time AI News & Market Intelligence  
> **Published:** 2026-08-21T00:00:00.000Z  
> **Category:** PRODUCT_LAUNCH  
> **Impact Score:** 130/100  
> **Primary Source:** [Together AI Blog](https://www.together.ai/blog/glm-5-3-vs-claude-fable-5-on-deepswe-cost-coding-and-routing)  
> **Canonical Citation:** [https://spidits.com/timeline/glm-5-3-vs-gpt-5-6-sol-on-deepswe-cost-coding-and-routing](https://spidits.com/timeline/glm-5-3-vs-gpt-5-6-sol-on-deepswe-cost-coding-and-routing)

## Executive Summary
We ran 904 DeepSWE rollouts on GLM-5.3 and GPT-5.6 Sol. Sol leads pass@1 by 3.7 points; GLM-5.3 wins pass@4 at half the cost, and a GLM-first cascade hits 85.9%.

## Key Entities & Companies
- **OpenAI**
- **Anthropic**

## Referenced Coverage & Sources
- **[Together AI Blog](https://www.together.ai/blog/glm-5-3-vs-claude-fable-5-on-deepswe-cost-coding-and-routing)**: GLM-5.3 vs. Claude Fable 5 on DeepSWE: Cost, Coding, and Routing — _We ran 904 DeepSWE rollouts on GLM-5.3 and Claude Fable 5. A tie on pass@1, but GLM-5.3 wins pass@4 and costs 5.4x less: \$3.99 per rollout vs. \$21.63._
- **[Together AI Blog](https://www.together.ai/blog/glm-5-3-vs-gpt-5-6-sol-on-deepswe-cost-coding-and-routing)**: GLM-5.3 vs. GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing — _We ran 904 DeepSWE rollouts on GLM-5.3 and GPT-5.6 Sol. Sol leads pass@1 by 3.7 points; GLM-5.3 wins pass@4 at half the cost, and a GLM-first cascade hits 85.9%._

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*Synthesized by SPIDITS AI Market Intelligence Desk. Track live AI news, model releases, and funding: [https://spidits.com](https://spidits.com)*