Models / Compare /DeepSeek V4 Pro vs GLM 5.1
Head to head
DeepSeek V4 Pro vs GLM 5.1
Compared on live catalog data — pricing synced daily, benchmark scores with provenance.
The short version
- DeepSeek V4 Pro is cheaper to run hosted: $0.87/M output vs $3.04/M for GLM 5.1 (3.5× difference at the cheapest tracked provider).
- DeepSeek V4 Pro takes 1M tokens of context vs 205K for GLM 5.1.
- GLM 5.1 scores 0.0044 on Arena Agent (IPS) vs -0.0078 for DeepSeek V4 Pro.
- GLM 5.1 scores 1518.4089 on Arena Coding vs 1502.1991 for DeepSeek V4 Pro.
| Spec | ||
|---|---|---|
| Vendor | DeepSeek | Z.AI |
| Parameters | 1.6T / 37B | 754B |
| 1M | 205K | |
| Weights | OPEN | OPEN |
| License | MIT License | MIT License |
| Modality | text->text | text->text |
| Released | Apr 22, 2026 | Apr 3, 2026 |
| 1008 GBest | 475.3 GBest | |
| Cheapest hosted | $0.43 / $0.87 per 1M (OpenRouter) | $0.97 / $3.04 per 1M (OpenRouter) |
| Tracked providers | 23 | 23 |
DeepSeek V4 Pro — our take
DeepSeek V4 Pro is a large downloadable text model with a one-million-token request limit and a permissive MIT licence. It excels at coding and hard-prompt tasks on the independent leaderboards we track, though its creative-writing score lags behind its other skills.
full breakdown →GLM 5.1 — our take
GLM 5.1 is a large downloadable text model from Z.AI with a permissive MIT licence and a 204,800-token request limit. Its strongest measured skill is coding, though creative writing lags well behind, and no active-parameter count is disclosed.
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