The Model Index
Up to four models

Claude Haiku 5.5 vs GLM-5.3

On the index (GPT-4 = 100), Claude Haiku 5.5 scores 174 and GLM-5.3 172. Side by side on the same third-party tests, with price and context. The link in your address bar shares this exact comparison.

Next to Claude Haiku 5.5
Presets
Claude Haiku 5.5
174158–191
WeightsClosed
ReleasedOct 2026
Price in / out$0.10 / $0.50
Context1M
Core tests taken7 of 9
GLM-5.3
172155–188
WeightsOpen
ReleasedAug 2026
Price in / out$0.077 / $1.4
Context1.05M
Core tests taken5 of 9

Claude Haiku 5.5 and GLM-5.3 are too close to call (3 points apart, within the uncertainty), ahead on 1 of 5 shared core tests, and costs 2.0× less.

Test by testthird-party results

Claude Haiku 5.5GLM-5.3
0%25%50%75%100%REASONING & KNOWLEDGEGPQA Diamond (Epoch AI)GPQA Diamond (Epoch AI)LiveBench Data AnalysisLiveBench Data AnalysisLiveBench IFLiveBench IFLiveBench LanguageLiveBench LanguageLiveBench ReasoningLiveBench ReasoningSimpleQA VerifiedSimpleQA VerifiedMATHSFrontierMath (tiers 1-3)FrontierMath (tiers 1-3)AIME-style maths (OTIS mock)AIME-style maths (OTIS mock)LiveBench MathematicsLiveBench MathematicsProofBench v1.1ProofBench v1.1Chess puzzlesChess puzzlesFrontierMath (tier 4)FrontierMath (tier 4)CODINGTerminal-Bench 4.0Terminal-Bench 4.0LiveBench Agentic CodingLiveBench Agentic CodingLiveBench CodingLiveBench CodingCode MigrationCode MigrationCyberBench v1.1CyberBench v1.1IOIIOIProgramBenchProgramBenchVibe Code Bench 1-100Vibe Code Bench 1-100Vibe Code Bench v1.1Vibe Code Bench v1.1FrontierSWEFrontierSWEAGENTSAPEX-AgentsAPEX-AgentsSRE BenchSRE BenchTerminal-Bench-ScienceTerminal-Bench-ScienceDTBenchDTBenchLMCALMCAMystery game puzzlesMystery game puzzlesPROFESSIONAL WORKFinance Agent (v2)Finance Agent (v2)EMBEMBHLAB-Vals-1.1HLAB-Vals-1.1Legal Research BenchLegal Research BenchMedCodeMedCodeMedScribeMedScribePublic Benefits Bench v1.1Public Benefits Bench v1.1Tax Agent BenchTax Agent BenchNOVEL PROBLEMSMysteryMechanismMysteryMechanism
Every result as a table
TestClaude Haiku 5.5GLM-5.3
Reasoning & knowledge
GPQA Diamond (Epoch AI)89.6%90.9%
LiveBench Data Analysis72.8%70.2%
LiveBench IF66.5%69.3%
LiveBench Language63.5%79.9%
LiveBench Reasoning84.6%85.8%
SimpleQA Verified23.8%41.0%
Maths
FrontierMath (tiers 1-3)75.1%68.8%
AIME-style maths (OTIS mock)98.9%91.1%
LiveBench Mathematics92.8%87.9%
ProofBench v1.189.0%49.0%
Chess puzzles55.0%37.0%
FrontierMath (tier 4)46.3%29.3%
Coding
Terminal-Bench 4.036.4%38.9%
LiveBench Agentic Coding57.2%60.9%
LiveBench Coding77.9%79.0%
Code Migration44.6%44.2%
CyberBench v1.175.5%72.1%
IOI47.3%68.4%
ProgramBench2.5%1.5%
Vibe Code Bench 1-10020.4%20.0%
Vibe Code Bench v1.190.4%78.1%
FrontierSWE43.8%30.2%
Agents
APEX-Agents56.1%56.6%
SRE Bench5.7%9.2%
Terminal-Bench-Science10.0%5.7%
DTBench95.0%87.7%
LMCA51.1%55.5%
Mystery game puzzles30.0%33.0%
Professional work
Finance Agent (v2)54.1%55.8%
EMB59.0%56.3%
HLAB-Vals-1.14.2%14.6%
Legal Research Bench43.8%49.0%
MedCode51.5%42.9%
MedScribe89.5%88.8%
Public Benefits Bench v1.163.2%68.5%
Tax Agent Bench31.9%39.7%
Novel problems
MysteryMechanism35.1%23.0%

Tests at least two of these models have taken. Bold rows are the core tests.

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