text model comparison
DeepSeek-V4-Pro vs GLM-5.3
DeepSeek-V4-Pro and GLM-5.3 are both current text models, from DeepSeek and Z.ai. DeepSeek-V4-Pro is 6% cheaper per 1M input tokens than GLM-5.3, $1.32 vs $1.40. On Arena Text, DeepSeek-V4-Pro scores 1465 Elo and GLM-5.3 1478 Elo (Arena, measured October 8, 2026). Both accept 1,000,000 tokens of context.
Data verified October 13, 2026 · Dataset 2026-10-13
Side by side
Standard-tier prices in effect today. The better value in each row is highlighted.
| Fact | DeepSeek-V4-Pro | GLM-5.3 |
|---|---|---|
| Price per 1M input tokens | $1.32 (better) | $1.40 |
| Price per 1M output tokens | $3.96 (better) | $4.40 |
| Cost of 10M input and 2M output tokens | $21.12 (better) | $22.80 |
| Arena Text | 1465 Elo (#29 of 49) | 1478 Elo (#18 of 49) (better) |
| GPQA Diamond | 91.7% (#19 of 40) (better) | 90.9% (#22 of 40) |
| FrontierMath Tiers 1-3 (v2) | 64.6% (#26 of 40) | 68.8% (#21 of 40) (better) |
| SimpleQA Verified | 52.9% (#18 of 36) (better) | 41% (#27 of 36) |
| Provider | DeepSeek | Z.ai |
| Release date | August 13, 2026 | August 18, 2026 |
| Access | API and open weights | API and open weights |
| Context window | 1,000,000 tokens | 1,000,000 tokens |
| Max output | 384,000 tokens | 128,000 tokens |
| Input | text | text |
| Output | text | text |
When to choose each
DeepSeek-V4-Pro
Best for
- Agentic coding and terminal tasks
- Long-context jobs that need very long outputs
Watch out for
- The recorded rates are peak-hour prices (01:00 to 04:00 and 06:00 to 10:00 UTC on weekdays)
- No image input on the DeepSeek API, where the cheaper deepseek-flash has it
- DeepSeek had planned to retire it in September before extending service, so check its status before a long commitment
GLM-5.3
Best for
- Long-horizon agentic coding
- Self-hosted reasoning with permissive weights
Watch out for
- Text input only, and reasoning cannot be turned off: requests that disable thinking fail
- The licence requires a Z.ai security review before very large model-as-a-service operators use it commercially
DeepSeek-V4-Pro vs GLM-5.3 FAQ
Which is cheaper, DeepSeek-V4-Pro or GLM-5.3?
DeepSeek-V4-Pro is 6% cheaper per 1M input tokens than GLM-5.3, $1.32 vs $1.40. For 10M input and 2M output tokens, DeepSeek-V4-Pro costs $21.12 and GLM-5.3 $22.80 at standard rates.
Which scores higher on independent benchmarks, DeepSeek-V4-Pro or GLM-5.3?
GLM-5.3 leads on Arena Text, 1478 Elo to 1465 Elo; DeepSeek-V4-Pro leads on GPQA Diamond, 91.7% to 90.9%; GLM-5.3 leads on FrontierMath Tiers 1-3 (v2), 68.8% to 64.6%. Scores are independent evaluations, not either vendor's launch figures.
Which has the larger context window, DeepSeek-V4-Pro or GLM-5.3?
Both accept 1,000,000 tokens of context.
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Production evaluation
Choosing between DeepSeek-V4-Pro and GLM-5.3?
Public benchmarks narrow the shortlist. We run both on your own tasks, data and cost limits, then build the routing and review controls to run the winner in production.
- A head-to-head evaluation on your real workload
- Routing between models by cost and difficulty