DeepSeek R1 is here: Performance on par with [OpenAI o1](/openai/o1), but open-sourced and with fully open reasoning tokens. It's 671B parameters in size, with 37B active in an inference pass. Fully open-source model & [technical report](h…
Model details →DeepSeek: R1 vs Z.ai: GLM 5
Z.ai: GLM 5 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
GLM-5 is Z.ai’s flagship open-source foundation model engineered for complex systems design and long-horizon agent workflows. Built for expert developers, it delivers production-grade performance on large-scale programming tasks, rivaling l…
Model details →Side-by-side comparison
| Capability | DeepSeek: R1 | Z.ai: GLM 5 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 64K | 80K | 🏆 Z.ai: GLM 5 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.70 | $0.72 | 🏆 DeepSeek: R1 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $2.50 | $2.30 | 🏆 Z.ai: GLM 5 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | — | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is DeepSeek: R1 better than Z.ai: GLM 5?
Z.ai: GLM 5 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between DeepSeek: R1 and Z.ai: GLM 5?
Input: $0.70 vs $0.72 per 1M tokens. Output: $2.50 vs $2.30 per 1M tokens.
What context windows do DeepSeek: R1 and Z.ai: GLM 5 support?
DeepSeek: R1 supports up to 64K tokens. Z.ai: GLM 5 supports up to 80K tokens.
Do both DeepSeek: R1 and Z.ai: GLM 5 support tool calling?
DeepSeek: R1: yes. Z.ai: GLM 5: yes.