DeepSeek-V4-Pro vs GLM-5.3-Flash
Wins 2 of 7 areas
Facts · Following instructions
Wins 5 of 7 areas
Coding · Agents · Reasoning · Math · Long documents
GLM-5.3-Flash is the stronger all-rounder.DeepSeek-V4-Pro is better at facts.
Scores updated · 32 tests both models report · How we compare
Where each one wins
Tests won in each of the seven areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- CodingWriting and fixing software14GLM-5.3-Flash4 of 6 tests · 1 tie
- AgentsCarrying out multi-step tasks on its own14GLM-5.3-Flash4 of 5 tests
- ReasoningHard problems that need careful thinking13GLM-5.3-Flash3 of 4 tests
- MathCompetition and research-level math12GLM-5.3-Flash2 of 3 tests
- Long documentsFinding answers in very long texts01GLM-5.3-Flash1 of 1 test
- FactsGetting facts right instead of making them up21DeepSeek-V4-Pro2 of 3 tests
- Following instructionsDoing exactly what it is asked10DeepSeek-V4-Pro1 of 1 test
Long documents and following instructions rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
GLM-5.3-Flash costs 88% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where GLM-5.3-Flash pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+66.5points ahead
- Real work tasks from 44 professionsGDPVal+24.4points ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+20.3points ahead
Where DeepSeek-V4-Pro pulls ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+15.5points ahead
- Short factual questions, answered correctlySimpleQA Verified+14.2points ahead
- Recent programming contest problemsLiveCodeBench v6+11.9points ahead
Every test, side by side
All 32 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGLM-5.3-Flash
- Terminal-Bench 2.1GLM-5.3-Flash by 20.36484.3+20.3
- LMArena · WebDevGLM-5.3-Flash by 146 rating points14631609+146 rating
- LiveBench · Agentic CodingGLM-5.3-Flash by 14.242.656.8+14.2
- LiveCodeBench v6DeepSeek-V4-Pro by 11.992.580.6+11.9
- LiveBench · CodingGLM-5.3-Flash by 97079+9
- SciCodetie50.851.6tie
AgentsGLM-5.3-Flash
- GDPValGLM-5.3-Flash by 24.432.857.2+24.4
- Terminal-Bench 4.0GLM-5.3-Flash by 18.214.632.8+18.2
- τ-Bench V3 · BankingGLM-5.3-Flash by 17.130.147.2+17.1
- AA IT-Bench SREGLM-5.3-Flash by 12.938.351.2+12.9
- BrowseCompDeepSeek-V4-Pro by 7.483.476+7.4
ReasoningGLM-5.3-Flash
- LiveBench · ReasoningDeepSeek-V4-Pro by 5.182.777.6+5.1
- CritPtGLM-5.3-Flash by 2.512.915.4+2.5
- GPQA DiamondGLM-5.3-Flash by 2.488.891.2+2.4
- Humanity's Last ExamGLM-5.3-Flash by 2.437.539.9+2.4
FactsDeepSeek-V4-Pro
- AA-Omniscience · Non-hallucinationGLM-5.3-Flash by 66.55.972.4+66.5
- AA-Omniscience · AccuracyDeepSeek-V4-Pro by 15.54327.5+15.5
- SimpleQA VerifiedDeepSeek-V4-Pro by 14.246.232+14.2
MathGLM-5.3-Flash
- FrontierMath Tier 4GLM-5.3-Flash by 14.72.417.1+14.7
- FrontierMath Tiers 1-3 (v2)GLM-5.3-Flash by 10.545.355.8+10.5
- LiveBench · MathematicsDeepSeek-V4-Pro by 9.590.781.2+9.5
Following instructionsDeepSeek-V4-Pro
- LiveBench · Instruction FollowingDeepSeek-V4-Pro by 9.662.452.8+9.6
Other results9 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- ToolathlonGLM-5.3-Flash by 26.651.878.4+26.6
- AA Agentic IndexGLM-5.3-Flash by 23.527.751.2+23.5
- AA-OmniscienceGLM-5.3-Flash by 18.2-10.77.5+18.2
- NL2RepoGLM-5.3-Flash by 17.838.556.3+17.8
- Artificial Analysis Coding IndexGLM-5.3-Flash by 12.159.471.5+12.1
- AA IntelligenceGLM-5.3-Flash by 11.430.441.8+11.4
- livebench_data_analysisGLM-5.3-Flash by 1.974.576.4+1.9
- livebench_languagetie78.177.3tie
- Agents' Last Examtie25.726.3tie
Questions people ask
Which is better, DeepSeek-V4-Pro or GLM-5.3-Flash?
GLM-5.3-Flash wins five of the seven areas where both have results: coding, agents, reasoning, math and long documents. DeepSeek-V4-Pro wins facts and following instructions.
Which is better for coding?
GLM-5.3-Flash. It wins 4 of the 6 coding tests both models report; DeepSeek-V4-Pro wins 1, and 1 is a tie.
Which is cheaper?
DeepSeek-V4-Pro costs $1.32 per million input tokens and $3.96 per million output tokens; GLM-5.3-Flash costs $0.15 and $0.50. That makes GLM-5.3-Flash about 88% cheaper for the same work.
How do you compare the two?
We use the 32 benchmark tests both models have published scores on. The verdict counts the 23 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 9 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.