GLM-5.3-Flash vs Kimi K2.6
Wins 4 of 8 areas
Coding · Agents · Reasoning · Images and charts
Wins 4 of 8 areas
Facts · Math · Long documents · Following instructions
The two are evenly matched.GLM-5.3-Flash is better at coding and agents; Kimi K2.6 at math and facts.
Scores updated · 35 tests both models report · How we compare
Where each one wins
Tests won in each of the eight areas we test. 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 software31GLM-5.3-Flash3 of 6 tests · 2 ties
- AgentsCarrying out multi-step tasks on its own42GLM-5.3-Flash4 of 6 tests
- Images and chartsUnderstanding pictures, charts and video20GLM-5.3-Flash2 of 2 tests
- ReasoningHard problems that need careful thinking21GLM-5.3-Flash2 of 4 tests · 1 tie
- MathCompetition and research-level math03Kimi K2.63 of 3 tests
- FactsGetting facts right instead of making them up12Kimi K2.62 of 3 tests
- Long documentsFinding answers in very long texts01Kimi K2.61 of 1 test
- Following instructionsDoing exactly what it is asked01Kimi K2.61 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 87% 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
- Complex command-line tasks across many fieldsTerminal-Bench 4.0+32.3points ahead
- Real work tasks from 44 professionsGDPVal+30.3points ahead
- Customer-service tasks in a simulated bankτ-Bench V3 · Banking+23.9points ahead
Where Kimi K2.6 pulls ahead
- Completes tasks by operating a computer desktopOSWorld-Verified+58.3points ahead
- Follows detailed instructions exactlyLiveBench · Instruction Following+11.6points ahead
- Finds hard-to-locate facts by browsing the webBrowseComp+10.3points 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.
CodingGLM-5.3-Flash
- Terminal-Bench 2.1GLM-5.3-Flash by 18.484.365.9+18.4
- LMArena · WebDevGLM-5.3-Flash by 100 rating points16091509+100 rating
- LiveBench · Agentic CodingGLM-5.3-Flash by 9.956.846.9+9.9
- LiveCodeBench v6Kimi K2.6 by 980.689.6+9
- LiveBench · Codingtie7978.6tie
- SciCodetie51.651.5tie
AgentsGLM-5.3-Flash
- OSWorld-VerifiedKimi K2.6 by 58.314.873.1+58.3
- Terminal-Bench 4.0GLM-5.3-Flash by 32.332.80.5+32.3
- GDPValGLM-5.3-Flash by 30.357.226.9+30.3
- τ-Bench V3 · BankingGLM-5.3-Flash by 23.947.223.3+23.9
- AA IT-Bench SREGLM-5.3-Flash by 2051.231.2+20
- BrowseCompKimi K2.6 by 10.37686.3+10.3
ReasoningGLM-5.3-Flash
- CritPtGLM-5.3-Flash by 7.415.48+7.4
- Humanity's Last ExamGLM-5.3-Flash by 2.439.937.5+2.4
- LiveBench · ReasoningKimi K2.6 by 1.877.679.4+1.8
- GPQA Diamondtie91.291.1tie
FactsKimi K2.6
- AA-Omniscience · Non-hallucinationGLM-5.3-Flash by 12.972.459.5+12.9
- AA-Omniscience · AccuracyKimi K2.6 by 5.127.532.6+5.1
- SimpleQA VerifiedKimi K2.6 by 2.93234.9+2.9
Images and chartsGLM-5.3-Flash
- CharXiv (RQ)GLM-5.3-Flash by 2.789.486.7+2.7
- LMArena · VisionGLM-5.3-Flash by 13 rating points12951282+13 rating
MathKimi K2.6
- FrontierMath Tier 4Kimi K2.6 by 8.517.125.6+8.5
- LiveBench · MathematicsKimi K2.6 by 3.181.284.3+3.1
- FrontierMath Tiers 1-3 (v2)Kimi K2.6 by 1.455.857.2+1.4
Following instructionsKimi K2.6
- LiveBench · Instruction FollowingKimi K2.6 by 11.652.864.4+11.6
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.
- AA Agentic IndexGLM-5.3-Flash by 29.151.222.1+29.1
- ToolathlonGLM-5.3-Flash by 28.478.450+28.4
- BabyVisionKimi K2.6 by 15.153.468.5+15.1
- AA IntelligenceGLM-5.3-Flash by 14.841.827+14.8
- livebench_data_analysisGLM-5.3-Flash by 11.376.465.1+11.3
- Artificial Analysis Coding IndexGLM-5.3-Flash by 9.771.561.8+9.7
- AA-OmniscienceGLM-5.3-Flash by 2.27.55.3+2.2
- livebench_languageGLM-5.3-Flash by 2.277.375.1+2.2
- DeepSearchQA (F1)GLM-5.3-Flash by 1.384.383+1.3
Questions people ask
Which is better, GLM-5.3-Flash or Kimi K2.6?
GLM-5.3-Flash and Kimi K2.6 each win four of the eight areas we test. GLM-5.3-Flash wins coding, agents, reasoning and images and charts; Kimi K2.6 wins facts, math, long documents and following instructions. GLM-5.3-Flash costs 87% less.
Which is better for coding?
GLM-5.3-Flash. It wins 3 of the 6 coding tests both models report; Kimi K2.6 wins 1, and 2 are ties.
Which is cheaper?
GLM-5.3-Flash costs $0.15 per million input tokens and $0.50 per million output tokens; Kimi K2.6 costs $0.95 and $4.00. That makes GLM-5.3-Flash about 87% 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 26 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.