Comparing 2 models
DeepSeek V4.1 Flash vs GLM 5.3
Benchmarks through
Verdict
DeepSeek V4.1 Flash places higher on 6 of the 6 tasks where both are ranked. DeepSeek V4.1 Flash costs 2.2x less per input token.
- Choose DeepSeek V4.1 Flash for Cheap LLM for High Volume (#1), Local LLM for Coding (#1), Open-Weight LLM for Self-Hosting (#1).
Built from the published task rankings below; ranks come from each task's own weighted benchmarks, so a win on one task says nothing about another.
Measured head to head
Benchmarks both models were run on
| Evaluation | DeepSeek V4.1 Flash | GLM 5.3 | Source |
|---|---|---|---|
| FrontierMath Tiers 1-3 (Epoch AI) | 67.4% ± 2.8 | 68.8% ± 2.7 | source · 2026-10-08 |
| GPQA Diamond (Epoch AI) | 89.8% ± 1.7 | 90.9% ± 1.6 | source · 2026-10-09 |
| LiveBench Agentic Coding | 77.3% | 60.9% | source · 2026-10-16 |
| LiveBench Coding | 80.0% | 79.0% | source · 2026-10-16 |
| LiveBench Data Analysis | 79.3% | 70.2% | source · 2026-10-16 |
| LiveBench Instruction Following | 70.0% | 69.3% | source · 2026-10-16 |
| LiveBench Language | 81.2% | 79.9% | source · 2026-10-16 |
| LiveBench Math | 93.3% | 87.9% | source · 2026-10-16 |
| LiveBench Reasoning | 86.7% | 85.8% | source · 2026-10-16 |
| LMArena Agent | 3 | 2 | source · 2026-10-14 |
| LMArena Agent Bash Recovery | 7.9 | -0.1 | source · 2026-10-08 |
| LMArena Agent Steerability | 1.9 | 0.4 | source · 2026-10-14 |
| LMArena Agent Task Outcome | 7.5 | 3.8 | source · 2026-10-14 |
| LMArena Agent Tool Hallucination | 0.5 | 0.6 | source · 2026-10-14 |
| LMArena Creative Writing | 1437 Elo | 1456 Elo | source · 2026-10-15 |
| LMArena Instruction Following | 1473 Elo | 1476 Elo | source · 2026-10-15 |
| LMArena Long Query | 1474 Elo | 1481 Elo | source · 2026-10-15 |
| LMArena Math | 1478 Elo | 1491 Elo | source · 2026-10-15 |
| LMArena Text | 1475 Elo | 1479 Elo | source · 2026-10-15 |
| LMArena Text Factuality | 1468 Elo | 1466 Elo | source · 2026-10-15 |
| LMArena WebDev | 1619 Elo | 1621 Elo | source · 2026-10-13 |
| OTIS Mock AIME (Epoch AI) | 98.3% ± 0.6 | 91.1% ± 3.5 | source · 2026-10-08 |
| SimpleQA Verified (Epoch AI) | 42.9% ± 1.6 | 41% ± 1.6 | source · 2026-10-13 |
Values are as published by each evaluator, in its own units; rows from different evaluators are not on a common scale.
task evidence
How they place when the question changes
Lower ranks are better. “Best” marks the strongest option in this shortlist for that task.