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Model Pareto

Claude Sonnet 5.5 vs GLM-5.3

Claude Sonnet 5.5 scores higher than GLM-5.3 in both shared categories. Claude Sonnet 5.5 costs 1.9× as much as GLM-5.3 ($4.00 vs $2.15 per million tokens, blended 3:1 input:output).
Claude Sonnet 5.5GLM-5.3
Focus

Coding: quality vs price

Compared models are ringed; the other 101 ranked here are greyed.

Lower price is better. Pareto frontier: Granite 4.2 3B, NVIDIA Nemotron 3 Nano 30B A3B, gpt-oss-20b, Ling-3.0-flash-VL, MiMo-V2.6-Flash, GLM-5.3 Flash, DeepSeek V4.1 Flash, MiMo-V2.6-Pro, Claude Sonnet 5.5, Claude Opus 5.5. 26 models are not plotted: Xing4.0-29B-A4B, Nex-N2.5-Pro, Atria Dawn Preview, Intern-S2-397B, Solar Open2 250B, Phi-4-reasoning-plus, Motif 3, Nex-N2-Pro, Nex-N2.5-Mini, A.X-K2, K2 Horizon 375B A23B, K-EXAONE 2.0 0803, K2 Horizon MoVA 36B A4B, Intern-S2-Preview (35B-A3B), Command A+, North Mini Code, G9v3-39A5B, Falcon-H1-34B-Instruct, Devstral 2, K2 Horizon 7B, Devstral Small 2, MiniCPM5-2B, Ling 3.0 Tiny, K2 Horizon 3.7B, K2 Horizon 0.9B, LFM2.5-2.6B.

26 models with no price data — shown in the strip at the left edge

Xing4.0-29B-A4B, Nex-N2.5-Pro, Atria Dawn Preview, Intern-S2-397B, Solar Open2 250B, Phi-4-reasoning-plus, Motif 3, Nex-N2-Pro, Nex-N2.5-Mini, A.X-K2, K2 Horizon 375B A23B, K-EXAONE 2.0 0803, K2 Horizon MoVA 36B A4B, Intern-S2-Preview (35B-A3B), Command A+, North Mini Code, G9v3-39A5B, Falcon-H1-34B-Instruct, Devstral 2, K2 Horizon 7B, Devstral Small 2, MiniCPM5-2B, Ling 3.0 Tiny, K2 Horizon 3.7B, K2 Horizon 0.9B, LFM2.5-2.6B

  • Best-value frontier (nothing is both cheaper and better)
  • Evidencestrong → weak
  • Estimated from other categories
  • Claude Sonnet 5.5
    Quality
    91.7
    Rank
    #2/103
    Price
    $4.00/M tok
    Speed
    —
    In$2.00Out$10/M tok

    vs GLM-5.3: +17.6 quality · 1.9× price

  • GLM-5.3
    Quality
    74.0
    Rank
    #9/103
    Price
    $2.15/M tok
    Speed
    57tok/s
    In$1.40▾Out$4.40▾/M tok

    vs Claude Sonnet 5.5: −17.6 quality · 0.54× price

Overview

Metric
Claude Sonnet 5.5
GLM-5.3
Lab
Anthropic
Z.ai (Zhipu)
Released
Sep 28, 2026
Aug 14, 2026
Weights
Proprietary
Open
Input price
$/M tok
$2.00
$1.40Best
Output price
$/M tok
$10
$4.40Best
Blended price
$/M tok · 3:1 in:out
$4.00
$2.15Best
Output speed
tok/s
—
57
Context
tokens
1MBest
1MBest

Quality by category

0–100 within each category (100 = best tracked model). Rank is among all models ranked there. Click a row to focus it.

Metric
Claude Sonnet 5.5
GLM-5.3
Coding
91.7±5.2Best
#2/103Mixedbest value
74.0±4.5
#9/103Verified
Writing & chat
Not ranked
86.0±4.3
#6/146Verifiedbest value
Hard reasoning
95.2±4.9Best
#3/182Verifiedbest value
81.0±3.7
#15/182Verified
Agents
Not ranked
87.4±5.8
#4/173Verified

Coding benchmarks

Rank among models with a published score, and the leaderboard around each model. ~ italic = no published score, estimated from related benchmarks.

Metric
Claude Sonnet 5.5
GLM-5.3
SWE-bench Verified
day 0
~#2/14~93.8%Estimated
  1. #1Claude Opus 596.0%
  2. ~#2Claude Sonnet 5.5Estimated93.8%
  3. #2Claude Sonnet 585.2%
estimated from related benchmarks
~#2/14~89.7%Estimated
  1. #1Claude Opus 596.0%
  2. ~#2GLM-5.3Estimated89.7%
  3. #2Claude Sonnet 585.2%
estimated from related benchmarks
SWE-bench Pro (Public)
day 0
#2/1881.3%Lab-reported
  1. #1Claude Opus 5.589.9%
  2. #2Claude Sonnet 5.581.3%
  3. #3Claude Fable 5.181.2%
anthropic.com · 2026-09-28
~#5/19~71.3%Estimated
  1. #1Claude Opus 5.589.9%
  2. #4Claude Opus 579.2%
  3. ~#5GLM-5.3Estimated71.3%
  4. #5Intern-S2-397B68.5%
estimated from related benchmarks
DeepSWE v1.1
day 0
#5/3071.0%BestLab-reported
  1. #1DeepSeek V4.1 Flash74.2%
  2. #4Muse Spark 1.371.7%
  3. #5Claude Sonnet 5.571.0%
  4. #6GPT-5.6 Terra69.6%
anthropic.com · 2026-09-28
#21/3061.4%Verified
  1. #1DeepSeek V4.1 Flash74.2%
  2. #20Claude Opus 562.5%
  3. #21GLM-5.361.4%
  4. #22Qwen3.8 Flash-Next58.7%
artificialanalysis.ai · 2026-09-24
Terminal-Bench 4.0
day 0
#1/8363.6%BestVerified
  1. #1Claude Sonnet 5.563.6%
  2. #2Claude Opus 5.559.6%
artificialanalysis.ai · 2026-09-28
#7/8341.9%Verified
  1. #1Claude Sonnet 5.563.6%
  2. #6GPT-6 Sol43.9%
  3. #7GLM-5.341.9%
  4. #8Qwen3.8 Max (0902)38.9%
artificialanalysis.ai · 2026-09-24
LiveCodeBench
third-party
~#2/20~92.2%Estimated
  1. #1Qwen3.8-Omni-Flash92.6%
  2. ~#2Claude Sonnet 5.5Estimated92.2%
  3. #2Qwen3.8 Flash-Next91.9%
estimated from related benchmarks
~#2/20~92.1%Estimated
  1. #1Qwen3.8-Omni-Flash92.6%
  2. ~#2GLM-5.3Estimated92.1%
  3. #2Qwen3.8 Flash-Next91.9%
estimated from related benchmarks
SciCode
third-party
#3/9561.0%BestVerified
  1. #1Claude Opus 5.566.9%
  2. #2Claude Fable 5.163.1%
  3. #3Claude Sonnet 5.561.0%
  4. #4MiMo-V2.6-Pro60.9%
artificialanalysis.ai · 2026-09-28
#6/9559.0%Verified
  1. #1Claude Opus 5.566.9%
  2. #5Kimi K359.5%
  3. #6GLM-5.359.0%
  4. #7Step 5 Preview58.9%
artificialanalysis.ai · 2026-09-24
AA Coding Agent Index
third-party
~#4/15~61.0Estimated
  1. #1Claude Opus 5.566.0
  2. #3GPT-6 Astra61.6
  3. ~#4Claude Sonnet 5.5Estimated61.0
  4. #4Claude Opus 559.7
estimated from related benchmarks
#8/1453.6Verified
  1. #1Claude Opus 5.566.0
  2. #7Muse Spark 1.354.3
  3. #8GLM-5.353.6
  4. #9Kimi K351.9
artificialanalysis.ai · 2026-09-24
Benchmarks in other categories (3)

Writing & chat benchmarks

Rank among models with a published score, and the leaderboard around each model. ~ italic = no published score, estimated from related benchmarks.

Metric
Claude Sonnet 5.5
GLM-5.3

Hard reasoning benchmarks

Rank among models with a published score, and the leaderboard around each model. ~ italic = no published score, estimated from related benchmarks.

Metric
Claude Sonnet 5.5
GLM-5.3
GPQA Diamond
day 0
~#2/173~96.0%Estimated
  1. #1GPT-6 Astra96.1%
  2. ~#2Claude Sonnet 5.5Estimated96.0%
  3. #2Gemini 3.8 Flash95.3%
estimated from related benchmarks
#18/17291.7%Verified
  1. #1GPT-6 Astra96.1%
  2. #16Qwen3.8 Flash-Next92.3%
  3. #18GLM-5.391.7%
  4. #19GPT-5.3 Codex91.5%
artificialanalysis.ai · 2026-09-24
Humanity's Last Exam
day 0
#3/17855.0%BestVerified
  1. #1Claude Opus 5.561.4%
  2. #2Claude Fable 5.159.1%
  3. #3Claude Sonnet 5.555.0%
  4. #4Claude Opus 554.9%
artificialanalysis.ai · 2026-09-28
#21/17842.3%Verified
  1. #1Claude Opus 5.561.4%
  2. #20Qwen3.8 2.4T A95B42.4%
  3. #21GLM-5.342.3%
  4. #22Claude Sonnet 541.3%
artificialanalysis.ai · 2026-09-24
AIME (latest)
day 0
~#2/25~96.5%Estimated
  1. #1Inkling97.1%
  2. ~#2Claude Sonnet 5.5Estimated96.5%
  3. #2Muse Glimmer94.7%
estimated from related benchmarks
~#2/25~96.7%Estimated
  1. #1Inkling97.1%
  2. ~#2GLM-5.3Estimated96.7%
  3. #2Muse Glimmer94.7%
estimated from related benchmarks
AA Intelligence Index
third-party
#2/7456.0BestVerified
  1. #1Claude Opus 5.557.6
  2. #2Claude Sonnet 5.556.0
  3. #3Claude Fable 5.153.4
artificialanalysis.ai · 2026-09-28
#11/7444.8Verified
  1. #1Claude Opus 5.557.6
  2. #10Qwen3.8 Max (0902)45.4
  3. #11GLM-5.344.8
  4. #12Grok 4.644.2
artificialanalysis.ai · 2026-09-24

Agents benchmarks

Rank among models with a published score, and the leaderboard around each model. ~ italic = no published score, estimated from related benchmarks.

Metric
Claude Sonnet 5.5
GLM-5.3
τ²-bench (Telecom)
day 0
—
~#2/116~98.3%Estimated
  1. #1Step 3.7 Flash98.5%
  2. ~#2GLM-5.3Estimated98.3%
  3. #2Gemini 3.1 Pro95.6%
estimated from related benchmarks
OSWorld-Verified
day 0
—
~#3/12~84.0%Estimated
  1. #1Kimi K384.8%
  2. #2Qwen3.8 27B84.3%
  3. ~#3GLM-5.3Estimated84.0%
  4. #3Nex-N2.5-Pro82.2%
estimated from related benchmarks
OSWorld 2.0
day 0
—
~#2/5~58.4%Estimated
  1. #1GLM-5.3 Flash59.1%
  2. ~#2GLM-5.3Estimated58.4%
  3. #2Kimi K358.3%
estimated from related benchmarks
BrowseComp
day 0
—
~#4/18~91.1%Estimated
  1. #1Atria Dawn Preview92.5%
  2. #3Kimi K391.2%
  3. ~#4GLM-5.3Estimated91.1%
  4. #4Claude Opus 590.8%
estimated from related benchmarks
GDPval-AA (Elo)
third-party
—
#8/861646Verified
  1. #1Claude Opus 5.51846
  2. #7Qwen3.8 Max (0902)1668
  3. #8GLM-5.31646
  4. #9GLM-5.3 Flash1641
artificialanalysis.ai · 2026-09-24
AutomationBench-AA
third-party
—
#6/7962.2%Verified
  1. #1Claude Opus 5.569.5%
  2. #5Grok 4.765.6%
  3. #6GLM-5.362.2%
  4. #7GPT-6 Sol61.6%
artificialanalysis.ai · 2026-09-24
τ-Bench Banking (AA)
third-party
—
#2/8850.3%Verified
  1. #1Muse Spark 1.350.5%
  2. #2GLM-5.350.3%
  3. #3Qwen3.8 2.4T A95B49.1%
artificialanalysis.ai · 2026-09-24