Pairwise benchmark snapshot · Aug 16, 2026

Claude Sonnet 5 vs GLM-5.2 benchmark

Name: Claude Sonnet 5 vs GLM-5.2 AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Claude Sonnet 5 (Anthropic) and GLM-5.2 (Zhipu) using the latest snapshots we have as of Aug 16, 2026. On preference Elo, Claude Sonnet 5 is ahead by 64 points (1,556 vs 1,492; seed-bootstrap (Aug 16, 2026)). On SWE-bench coding, Claude Sonnet 5 resolves 73.8% versus 69.3% (seed-bootstrap (Aug 16, 2026)). Claude Sonnet 5 streams faster (118 tok/s) while GLM-5.2 is the cheaper output token ($0.97/1M). GLM-5.2 has the larger context window (1M tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.

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Anthropic

Claude Sonnet 5

Anthropic workhorse. Official $2/$10 per 1M tokens made permanent on Aug 10 2026.

Elo 1,556$10/1M out

Zhipu

GLM-5.2

Zhipu flagship. Strong Chinese/English coding and agents.

Elo 1,492$0.9680000000000001/1M out

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Model A

Model B

Quick vs:vs Claude Opus 4.5 vs Claude Opus 4.6 vs Claude Sonnet 4.5 vs Claude 3.7 Sonnet

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude Sonnet 5 (7)vsGLM-5.2 (3)

Claude Sonnet 5: 7W (70%)Overall: Claude Sonnet 5GLM-5.2: 3W (30%)

← Claude Sonnet 5GLM-5.2 →

Claude Sonnet 5 (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,556vs1,492

Coding Elo

1,562vs1,504

SWE-bench

73.8%vs69.3%

LiveBench

70.4%vs65.2%

GPQA Diamond

82.8%vs79.5%

Claude Sonnet 5: 5WGLM-5.2: 0W

Claude Sonnet 5 (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

118 tok/svs84 tok/s

Time to first token

175 msvs270 ms

Claude Sonnet 5: 2WGLM-5.2: 0W

GLM-5.2 (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$10/1Mvs$0.97/1M

Input price

$2/1Mvs$0.31/1M

Context window

1Mvs1M

Claude Sonnet 5: 0WGLM-5.2: 3W

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect

Percentile 0–100

Dimensional AdvantageClaude Sonnet 5 4/6

Preference Elo

Claude Sonnet 5

64 pts advantage

Throughput Speed

Claude Sonnet 5

34 tok/s faster

Price Efficiency

GLM-5.2

$9.03/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

+4%1,556

EloHigh is better

1,492

Code Elo

High is better

+4%1,562

Code EloHigh is better

1,504

LiveBench

High is better

+8%70.4%

LiveBenchHigh is better

65.2%

SWE-bench

High is better

+6%73.8%

SWE-benchHigh is better

69.3%

GPQA

High is better

+4%82.8%

GPQAHigh is better

79.5%

TTFT

Low is better

+54%175 ms

TTFTLow is better

270 ms

Speed

High is better

+40%118 tok/s

SpeedHigh is better

84 tok/s

In $

Low is better

$2/1M

In $Low is better

$0.31/1M+549%

Out $

Low is better

$10/1M

Out $Low is better

$0.97/1M+933%

Context

High is better

ContextHigh is better

1M+5%

Interactive Simulator

Workload Cost & Savings Calculator

Simulate monthly production API costs based on published $/1M tokens.

Save up to 88% with GLM-5.2

Monthly Volume50M tokens/mo

Quick Presets:

Token Ratio (In vs Out)70% In / 30% Out

RAG / Search (10% out)Coding / Chat (50% out)

Claude Sonnet 5$220.00 / mo

In: $70.00Out: $150.00

GLM-5.2$25.30 / mo

In: $10.78Out: $14.52

Estimated Cost Delta

GLM-5.2 is estimated to save $194.70/month ($2,336/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
Claude Sonnet 5:Pick Claude Sonnet 5 when repo-level coding accuracy is the constraint.
2
GLM-5.2:Pick GLM-5.2 when you are optimizing output cost.
3
Claude Sonnet 5:Pick Claude Sonnet 5 when time-to-first-token matters more than peak Elo.

Recommended Workload Routing

Repo / coding agentsClaude Sonnet 5

Higher SWE-bench (73.8%).

High-volume chatGLM-5.2

Lower output list price ($0.97/1M).

Voice / low-latency UIClaude Sonnet 5

Lower TTFT (175 ms).

Long-document RAGGLM-5.2

Larger window (1M).

Screenshots / visionClaude Sonnet 5

Both accept images. Defaulting to the higher-Elo side (Claude Sonnet 5).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Claude Sonnet 5	Higher SWE-bench (73.8%).
High-volume chat	GLM-5.2	Lower output list price ($0.97/1M).
Voice / low-latency UI	Claude Sonnet 5	Lower TTFT (175 ms).
Long-document RAG	GLM-5.2	Larger window (1M).
Screenshots / vision	Claude Sonnet 5	Both accept images. Defaulting to the higher-Elo side (Claude Sonnet 5).

Related Editorial Dispatches & Benchmark Notes

View all news

newsAug 16, 2026

GLM-5.2 vs GLM 5V Turbo Price and SWE-bench 2026

GLM-5.2 undercuts GLM 5V Turbo by 74.2% on input at $0.31/1M, with 1,492 Elo and 69.3% SWE-bench in dated 2026 snapshots.

compareAug 10, 2026

Sonnet vs Opus in 2026: same family, different invoice

Usually Sonnet 5 vs Opus 5. Coding delta versus output $/1M. The workhorse question.

priceAug 10, 2026

Claude Sonnet 5 at $2/$10: the 2026 Anthropic workhorse

Aug 10 2026 made the $2/$10 list permanent. Sonnet is the default Claude unless the repo is actually on fire.

launchJun 18, 2026

GLM-5.2 remains the prior Zhipu flagship for upgrade pairs

Strong Chinese/English coding. 5.3 is the new row; 5.2 stays so the delta is visible.

Community Sentiment

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LIVE

Anthropic

Claude Sonnet 5

Elo 1,556

LiveBench70.4%

SWE-bench73.8%

Speed118 tok/s

Output cost$10/1M

Zhipu

GLM-5.2

Elo 1,492

LiveBench65.2%

SWE-bench69.3%

Speed84 tok/s

Output cost$0.97/1M

Frequently Asked Questions

Which is better overall, Claude Sonnet 5 or GLM-5.2?: Claude Sonnet 5 has the higher preference Elo in our latest snapshot (1,556). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, Claude Sonnet 5 or GLM-5.2?: Claude Sonnet 5 leads SWE-bench at 73.8% vs 69.3%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?: GLM-5.2 output tokens are $0.97/1M versus $10/1M. Input prices and retry rates still move the real bill.
Which is faster, Claude Sonnet 5 or GLM-5.2?: Claude Sonnet 5 has the lower time-to-first-token (175 ms vs 270 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?: GLM-5.2 accepts 1M tokens versus 1M.
Can I self-host either model?: GLM-5.2 is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.
Are these scores from CompareLLM’s own evals?: No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?: Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Claude Sonnet 5 and GLM-5.2 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Claude Sonnet 5 matchups →|All GLM-5.2 matchups →

Claude Sonnet 5 vs Claude Sonnet 4.5 (previous sonnet)GLM-5.2 vs GLM-5.3 (next glm)GLM-5.3 vs Claude Sonnet 5 Claude Opus 4.5 vs Claude Sonnet 5 Claude Opus 4.6 vs Claude Sonnet 5 Claude Sonnet 4.5 vs GLM-5.2

Claude Sonnet 5 vs GLM-5.2 benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude Sonnet 5 (7)vsGLM-5.2 (3)

Claude Sonnet 5: 7W (70%)Overall: Claude Sonnet 5GLM-5.2: 3W (30%)

← Claude Sonnet 5GLM-5.2 →

Claude Sonnet 5 (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,556vs1,492

Coding Elo

1,562vs1,504

SWE-bench

73.8%vs69.3%

LiveBench

70.4%vs65.2%

GPQA Diamond

82.8%vs79.5%

Claude Sonnet 5: 5WGLM-5.2: 0W

Claude Sonnet 5 (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

118 tok/svs84 tok/s

Time to first token

175 msvs270 ms

Claude Sonnet 5: 2WGLM-5.2: 0W

GLM-5.2 (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$10/1Mvs$0.97/1M

Input price

$2/1Mvs$0.31/1M

Context window

1Mvs1M

Claude Sonnet 5: 0WGLM-5.2: 3W

Recommended Workload Routing

Repo / coding agentsClaude Sonnet 5

Higher SWE-bench (73.8%).

High-volume chatGLM-5.2

Lower output list price ($0.97/1M).

Voice / low-latency UIClaude Sonnet 5

Lower TTFT (175 ms).

Long-document RAGGLM-5.2

Larger window (1M).

Screenshots / visionClaude Sonnet 5

Both accept images. Defaulting to the higher-Elo side (Claude Sonnet 5).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Claude Sonnet 5	Higher SWE-bench (73.8%).
High-volume chat	GLM-5.2	Lower output list price ($0.97/1M).
Voice / low-latency UI	Claude Sonnet 5	Lower TTFT (175 ms).
Long-document RAG	GLM-5.2	Larger window (1M).
Screenshots / vision	Claude Sonnet 5	Both accept images. Defaulting to the higher-Elo side (Claude Sonnet 5).

Frequently Asked Questions

Which is better overall, Claude Sonnet 5 or GLM-5.2?

Claude Sonnet 5 has the higher preference Elo in our latest snapshot (1,556). “Better” still depends on coding, price, and latency — see the table.

Which is better at coding, Claude Sonnet 5 or GLM-5.2?

Claude Sonnet 5 leads SWE-bench at 73.8% vs 69.3%. SWE-bench is one harness, not your repo.

Which is cheaper to run in production?

GLM-5.2 output tokens are $0.97/1M versus $10/1M. Input prices and retry rates still move the real bill.

Which is faster, Claude Sonnet 5 or GLM-5.2?

Claude Sonnet 5 has the lower time-to-first-token (175 ms vs 270 ms). Tokens/sec is a separate column if you care about long completions.

Which has the larger context window?

GLM-5.2 accepts 1M tokens versus 1M.

Can I self-host either model?

GLM-5.2 is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.

Are these scores from CompareLLM’s own evals?

No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.

What does preference Elo mean on this page?

Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Claude Sonnet 5 and GLM-5.2 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

Claude Sonnet 5

Claude Sonnet 5

GLM-5.2

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

GLM-5.2 vs GLM 5V Turbo Price and SWE-bench 2026

Sonnet vs Opus in 2026: same family, different invoice

Claude Sonnet 5 at $2/$10: the 2026 Anthropic workhorse

GLM-5.2 remains the prior Zhipu flagship for upgrade pairs

Cast Your Matchup Vote

Community Discussions (0)

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CompareLLM Matrix

Claude Sonnet 5

GLM-5.2

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

Claude Sonnet 5

Claude Sonnet 5

GLM-5.2

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

GLM-5.2 vs GLM 5V Turbo Price and SWE-bench 2026

Sonnet vs Opus in 2026: same family, different invoice

Claude Sonnet 5 at $2/$10: the 2026 Anthropic workhorse

GLM-5.2 remains the prior Zhipu flagship for upgrade pairs

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Claude Sonnet 5

GLM-5.2

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons