Claude 5.5 SonnetvsGLM-4.5 Air

Claude 5.5 Sonnet leads the overall Podium Score by 5.9 points (94.8 vs 88.9).Category wins: Claude 5.5 Sonnet 7 — 0 GLM-4.5 Air.GLM-4.5 Air is the cheaper pick ($1.1/M vs $15/M per 1M output tokens). GLM-4.5 Air is faster (96 t/s vs 94 t/s).

Open in Compare Tool →View Claude 5.5 SonnetView GLM-4.5 Air
Claude 5.5 SonnetDrag slider or hover to compareGLM-4.5 Air
GLM-4.5 Air
88.9
Coding: 55.0 · Speed: 96 t/s
Output Price: $1.1/M
Claude 5.5 Sonnet
94.8
Coding: 91.5 · Speed: 94 t/s
Output Price: $15/M
Quick VerdictAggregated 2026 Benchmark Analysis

Claude 5.5 Sonnet is rated higher overall with a Podium Score of 94.8 (vs 88.9 for GLM-4.5 Air). In head-to-head domain evaluations, Claude 5.5 Sonnet outperforms in 7 of 7 benchmark categories.

Coding & Engineering
Claude 5.5 Sonnet (91.5)
Inference Speed
GLM-4.5 Air (96 t/s)
Cost Efficiency
GLM-4.5 Air ($1.1/M)
API Price / 1M (in · out)
Claude 5.5 Sonnet $3/M · $15/M — GLM-4.5 Air $0.2/M · $1.1/M

Choose Claude 5.5 Sonnet for long documents and large codebases, and GLM-4.5 Air for cost-sensitive workloads.

MetricClaude 5.5 SonnetGLM-4.5 Air
Podium Score94.8 ▲88.9
Arena Elo1520 ▲1420
Intelligence Index95.0 ▲58.0
Coding91.5 ▲55.0
Math94.2 ▲82.0
Reasoning95.0 ▲90.0
Agentic89.4 ▲62.0
Knowledge88.0 ▲40.0
Multimodal96.0 ▲70.0
Long-context98.0 ▲72.0
Output speed94 t/s96 t/s ▲
Output price$15/M$1.1/M ▲
Context window1000K ▲131K
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Claude 5.5 Sonnet vs Claude Mythos · Claude 5.5 Sonnet vs Kimi K3.1 Pro · Claude 5.5 Sonnet vs Eleven Multilingual v3 · Claude 5.5 Sonnet vs FLUX.2 Pro
0 / 4
Compare Now →