DeepSeek-V4.1-Flash vs GLM-5.2
Wins 7 of 7 areas
Coding · Agents · Reasoning · Facts · Math · Long documents · Following instructions
Wins 0 of 7 areas
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DeepSeek-V4.1-Flash is the stronger all-rounder.
Scores updated · 35 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 software30DeepSeek-V4.1-Flash3 of 5 tests · 2 ties
- AgentsCarrying out multi-step tasks on its own30DeepSeek-V4.1-Flash3 of 3 tests
- MathCompetition and research-level math30DeepSeek-V4.1-Flash3 of 3 tests
- ReasoningHard problems that need careful thinking42DeepSeek-V4.1-Flash4 of 6 tests
- FactsGetting facts right instead of making them up21DeepSeek-V4.1-Flash2 of 3 tests
- Long documentsFinding answers in very long texts10DeepSeek-V4.1-Flash1 of 1 test
- Following instructionsDoing exactly what it is asked10DeepSeek-V4.1-Flash1 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.
DeepSeek-V4.1-Flash costs 74% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where DeepSeek-V4.1-Flash pulls ahead
- Abstract visual puzzles that people can solveARC-AGI-2+55.3points ahead
- Complex command-line tasks across many fieldsTerminal-Bench 4.0+25.8points ahead
- Fixes real GitHub issues, working as an agentLiveBench · Agentic Coding+25.5points ahead
Where GLM-5.2 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+70.2points ahead
- Research-level physics problemsCritPt+6.6points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+1.9points ahead
Every test, side by side
All 35 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingDeepSeek-V4.1-Flash
- LiveBench · Agentic CodingDeepSeek-V4.1-Flash by 25.577.351.8+25.5
- Terminal-Bench 2.1DeepSeek-V4.1-Flash by 12.790.677.9+12.7
- LMArena · WebDevDeepSeek-V4.1-Flash by 13 rating points16191606+13 rating
- SciCodetie51.951.2tie
- LiveBench · Codingtie8079.7tie
AgentsDeepSeek-V4.1-Flash
- Terminal-Bench 4.0DeepSeek-V4.1-Flash by 25.826.81+25.8
- GDPValDeepSeek-V4.1-Flash by 11.45543.6+11.4
- AA IT-Bench SREDeepSeek-V4.1-Flash by 4.246.942.7+4.2
ReasoningDeepSeek-V4.1-Flash
- ARC-AGI-2DeepSeek-V4.1-Flash by 55.378.122.8+55.3
- LiveBench · ReasoningDeepSeek-V4.1-Flash by 8.186.778.6+8.1
- SimpleBenchDeepSeek-V4.1-Flash by 7.966.758.8+7.9
- CritPtGLM-5.2 by 6.614.320.9+6.6
- Humanity's Last ExamGLM-5.2 by 1.939.241.1+1.9
- GPQA DiamondDeepSeek-V4.1-Flash by 1.490.989.5+1.4
FactsDeepSeek-V4.1-Flash
- AA-Omniscience · Non-hallucinationGLM-5.2 by 70.23.573.7+70.2
- AA-Omniscience · AccuracyDeepSeek-V4.1-Flash by 22.146.424.3+22.1
- SimpleQA VerifiedDeepSeek-V4.1-Flash by 8.742.934.2+8.7
MathDeepSeek-V4.1-Flash
- FrontierMath Tier 4DeepSeek-V4.1-Flash by 1746.329.3+17
- FrontierMath Tiers 1-3 (v2)DeepSeek-V4.1-Flash by 1271.259.2+12
- LiveBench · MathematicsDeepSeek-V4.1-Flash by 3.593.389.8+3.5
Long documentsDeepSeek-V4.1-Flash
- AA-LCRDeepSeek-V4.1-Flash by 5.78478.3+5.7
Following instructionsDeepSeek-V4.1-Flash
- LiveBench · Instruction FollowingDeepSeek-V4.1-Flash by 7.77062.3+7.7
Other results13 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.
- Program BenchGLM-5.2 by 43.420.363.7+43.4
- DeepSWE 1.1DeepSeek-V4.1-Flash by 30.274.244+30.2
- Terminal-bench 3.0DeepSeek-V4.1-Flash by 25.4304.6+25.4
- ARC-AGI-1DeepSeek-V4.1-Flash by 16.593.577+16.5
- NL2RepoDeepSeek-V4.1-Flash by 15.16448.9+15.1
- CyberGymDeepSeek-V4.1-Flash by 10.988.177.2+10.9
- AA-OmniscienceGLM-5.2 by 9.7-5.34.4+9.7
- HLE (with tools)DeepSeek-V4.1-Flash by 9.263.954.7+9.2
- Agents' Last ExamDeepSeek-V4.1-Flash by 831.823.8+8
- GDP (Surge AI)DeepSeek-V4.1-Flash by 6.817.210.4+6.8
- AA IntelligenceDeepSeek-V4.1-Flash by 5.839.533.7+5.8
- livebench_data_analysisDeepSeek-V4.1-Flash by 5.679.373.7+5.6
- livebench_languageDeepSeek-V4.1-Flash by 581.276.2+5
Questions people ask
Which is better, DeepSeek-V4.1-Flash or GLM-5.2?
DeepSeek-V4.1-Flash wins all seven areas where both have results: coding, agents, reasoning, facts, math, long documents and following instructions. GLM-5.2 wins none.
Which is better for coding?
DeepSeek-V4.1-Flash. It wins 3 of the 5 coding tests both models report; GLM-5.2 wins none, and 2 are ties.
Which is cheaper?
DeepSeek-V4.1-Flash costs $0.30 per million input tokens and $1.20 per million output tokens; GLM-5.2 costs $1.40 and $4.40. That makes DeepSeek-V4.1-Flash about 74% cheaper for the same work.
How do you compare the two?
We use the 35 benchmark tests both models have published scores on. The verdict counts the 22 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 13 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.