DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...
Model details →DeepSeek: DeepSeek V3.1 vs Z.ai: GLM 4.5 Air
Z.ai: GLM 4.5 Air wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter...
Model details →Side-by-side comparison
| Capability | DeepSeek: DeepSeek V3.1 | Z.ai: GLM 4.5 Air | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 164K | 131K | 🏆 DeepSeek: DeepSeek V3.1 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.25 | $0.13 | 🏆 Z.ai: GLM 4.5 Air |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.95 | $0.85 | 🏆 Z.ai: GLM 4.5 Air |
| 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: DeepSeek V3.1 better than Z.ai: GLM 4.5 Air?
Z.ai: GLM 4.5 Air wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between DeepSeek: DeepSeek V3.1 and Z.ai: GLM 4.5 Air?
Input: $0.25 vs $0.13 per 1M tokens. Output: $0.95 vs $0.85 per 1M tokens.
What context windows do DeepSeek: DeepSeek V3.1 and Z.ai: GLM 4.5 Air support?
DeepSeek: DeepSeek V3.1 supports up to 164K tokens. Z.ai: GLM 4.5 Air supports up to 131K tokens.
Do both DeepSeek: DeepSeek V3.1 and Z.ai: GLM 4.5 Air support tool calling?
DeepSeek: DeepSeek V3.1: yes. Z.ai: GLM 4.5 Air: yes.
Compare DeepSeek: DeepSeek V3.1 with other models
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