DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further …
Model details →DeepSeek: DeepSeek V3.1 Terminus (exacto) vs Z.ai: GLM 4.5 Air (free)
Z.ai: GLM 4.5 Air (free) 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 size. GLM-4.5…
Model details →Side-by-side comparison
| Capability | DeepSeek: DeepSeek V3.1 Terminus (exacto) | Z.ai: GLM 4.5 Air (free) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 164K | 131K | 🏆 DeepSeek: DeepSeek V3.1 Terminus (exacto) |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.21 | $0.00 | 🏆 Z.ai: GLM 4.5 Air (free) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.79 | $0.00 | 🏆 Z.ai: GLM 4.5 Air (free) |
| 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 Terminus (exacto) better than Z.ai: GLM 4.5 Air (free)?
Z.ai: GLM 4.5 Air (free) 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 Terminus (exacto) and Z.ai: GLM 4.5 Air (free)?
Input: $0.21 vs $0.00 per 1M tokens. Output: $0.79 vs $0.00 per 1M tokens.
What context windows do DeepSeek: DeepSeek V3.1 Terminus (exacto) and Z.ai: GLM 4.5 Air (free) support?
DeepSeek: DeepSeek V3.1 Terminus (exacto) supports up to 164K tokens. Z.ai: GLM 4.5 Air (free) supports up to 131K tokens.
Do both DeepSeek: DeepSeek V3.1 Terminus (exacto) and Z.ai: GLM 4.5 Air (free) support tool calling?
DeepSeek: DeepSeek V3.1 Terminus (exacto): yes. Z.ai: GLM 4.5 Air (free): yes.