💰 Unit Cost Winner GLM-5.3 $0.35/1M in · $1.00/1M out
⚡ Latency & Speed Winner GLM-5.3 160ms TTFT · 120 tok/s
💻 Coding (SWE) Winner Claude 4 Opus 77.2% SWE-bench · 96.8% HumanEval
🧠 STEM Reasoning Winner Claude 4 Opus 87.1% GPQA · 98.1% MATH-500

Which model is better: Claude 4 Opus or GLM-5.3?

GLM-5.3 is 97.7% cheaper for input tokens ($0.35 vs. $15.00 per 1M tokens) and $1.00 vs. $75.00 for output tokens (42.9x cost advantage). In terms of operational performance, GLM-5.3 delivers lower response latency at 160ms TTFT (760ms faster than Claude 4 Opus) with 120 vs. 46 tok/s throughput. Claude 4 Opus leads coding evaluations at 77.2% SWE-bench Verified vs. 56.0% for GLM-5.3 and 87.1% vs. 67.0% on GPQA Diamond.
Verified daily via automated API latency tests and official documentation.

Verified Performance & Unit Economics Delta (12 Dimensions)

Daily synchronized metrics across token pricing, prompt cache economics, latency, throughput, and 5 capability benchmarks.

Metric / Dimension Claude 4 Opus GLM-5.3 Net Delta / Advantage
Input Cost / 1M Tokens $15.00 $0.35 GLM-5.3 is 42.9x cheaper
Output Cost / 1M Tokens $75.00 $1.00 GLM-5.3 (98.7% lower)
Prompt Cache Read / 1M $1.500 $0.090 GLM-5.3 is 16.7x cheaper
Prompt Cache Write / 1M $18.75 $0.35 GLM-5.3 is 53.6x cheaper
Context Window (Max Output) 205k (64k out) 131k (16k out) Claude 4 Opus (1.6x larger context)
Avg TTFT Response Latency 920ms 160ms GLM-5.3 (760ms faster)
Generation Speed (Throughput) 46 tok/s 120 tok/s GLM-5.3 (+74 tok/s faster)
SWE-bench Verified (Coding) 77.2% 56% Claude 4 Opus (+21.2% lead)
GPQA Diamond (PhD STEM) 87.1% 67% Claude 4 Opus (+20.1% lead)
MMLU-Pro (Multi-Discipline) 91.8% 80.5% Claude 4 Opus (+11.3% lead)
MATH-500 (Quantitative Logic) 98.1% 88% Claude 4 Opus (+10.1% lead)
Inference Value Score (IVR) 43.6 / 100 69.9 / 100 GLM-5.3 (+26.3 pts)

Interactive Monthly Token Economics & ROI Forecaster

Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.

25.0M Tokens
500K 50M 250M 500M+
5.0M Tokens
100K 25M 75M 150M+
50% Cached
0% (Uncached) 25% 50% (Typical Agent) 95% Max

Estimated Monthly Spend

Claude 4 Opus $581.25

$15.00/1M in · $75.00/1M out

Prompt Cache: $1.500/1M read · $18.75/1M write

GLM-5.3 $10.50

$0.35/1M in · $1.00/1M out

Prompt Cache: $0.090/1M read · $0.35/1M write

Projected Monthly Cost Reduction
$570.75 / mo
(98.2% lower cost with GLM-5.3)
Open Full Matchup Analysis →
A

When to Choose Claude 4 Opus

Choose Claude 4 Opus (Anthropic) for mission-critical R&D, long-horizon autonomous coding tasks, complex theorem proving, and executive strategic synthesis — offering a 204k context window, 920ms TTFT, and $15.00/1M input pricing ($1.500/1M cached reads).

B

When to Choose GLM-5.3

Choose GLM-5.3 (Zhipu AI) for bilingual flagship foundation model optimized for cross-lingual reasoning, long-form structured analysis, and enterprise tool execution — offering a 131k context window, 160ms TTFT, and $0.35/1M input pricing ($0.090/1M cached reads).

Related Questions & Decision Factors

Which is cheaper: Claude 4 Opus or GLM-5.3?

GLM-5.3 is cheaper at $0.35/1M input tokens ($1.00/1M output) compared to $15.00/1M input ($75.00/1M output) for Claude 4 Opus.

Which model has lower TTFT latency and higher tok/s throughput: Claude 4 Opus or GLM-5.3?

GLM-5.3 delivers faster first-token latency at 160ms TTFT (120 tok/s throughput) compared to 920ms TTFT (46 tok/s) for Claude 4 Opus.

How do Claude 4 Opus and GLM-5.3 compare on SWE-bench coding and GPQA Diamond reasoning?

On SWE-bench Verified software engineering, Claude 4 Opus scores 77.2% versus 56% for GLM-5.3. On GPQA Diamond graduate-level STEM reasoning, Claude 4 Opus scores 87.1% versus 67% for GLM-5.3 (and 98.1% vs 88% on MATH-500).

When should you choose Claude 4 Opus?

Choose Claude 4 Opus (Anthropic) for mission-critical R&D, long-horizon autonomous coding tasks, complex theorem proving, and executive strategic synthesis — offering a 204k context window, 920ms TTFT, and $15.00/1M input pricing ($1.500/1M cached reads).

When should you choose GLM-5.3?

Choose GLM-5.3 (Zhipu AI) for bilingual flagship foundation model optimized for cross-lingual reasoning, long-form structured analysis, and enterprise tool execution — offering a 131k context window, 160ms TTFT, and $0.35/1M input pricing ($0.090/1M cached reads).

Explore High-Priority Related Model Matchups