💰 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 Gemini 3.1 Pro 71.8% SWE-bench · 94.8% HumanEval
🧠 STEM Reasoning Winner Gemini 3.1 Pro 82.4% GPQA · 96.8% MATH-500

Which model is better: Gemini 3.1 Pro or GLM-5.3?

GLM-5.3 is 72.0% cheaper for input tokens ($0.35 vs. $1.25 per 1M tokens) and $1.00 vs. $10.00 for output tokens (3.6x cost advantage). In terms of operational performance, GLM-5.3 delivers lower response latency at 160ms TTFT (260ms faster than Gemini 3.1 Pro) with 120 vs. 98 tok/s throughput. Gemini 3.1 Pro leads coding evaluations at 71.8% SWE-bench Verified vs. 56.0% for GLM-5.3 and 82.4% 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 Gemini 3.1 Pro GLM-5.3 Net Delta / Advantage
Input Cost / 1M Tokens $1.25 $0.35 GLM-5.3 is 3.6x cheaper
Output Cost / 1M Tokens $10.00 $1.00 GLM-5.3 (90.0% lower)
Prompt Cache Read / 1M $0.310 $0.090 GLM-5.3 is 3.4x cheaper
Prompt Cache Write / 1M $1.25 $0.35 GLM-5.3 is 3.6x cheaper
Context Window (Max Output) 1,049k (66k out) 131k (16k out) Gemini 3.1 Pro (8.0x larger context)
Avg TTFT Response Latency 420ms 160ms GLM-5.3 (260ms faster)
Generation Speed (Throughput) 98 tok/s 120 tok/s GLM-5.3 (+22 tok/s faster)
SWE-bench Verified (Coding) 71.8% 56% Gemini 3.1 Pro (+15.8% lead)
GPQA Diamond (PhD STEM) 82.4% 67% Gemini 3.1 Pro (+15.4% lead)
MMLU-Pro (Multi-Discipline) 89.5% 80.5% Gemini 3.1 Pro (+9.0% lead)
MATH-500 (Quantitative Logic) 96.8% 88% Gemini 3.1 Pro (+8.8% lead)
Inference Value Score (IVR) 60 / 100 69.9 / 100 GLM-5.3 (+9.9 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

Gemini 3.1 Pro $69.50

$1.25/1M in · $10.00/1M out

Prompt Cache: $0.310/1M read · $1.25/1M 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
$59.00 / mo
(84.9% lower cost with GLM-5.3)
Open Full Matchup Analysis →
A

When to Choose Gemini 3.1 Pro

Choose Gemini 3.1 Pro (Google) for complex enterprise architecture planning, multi-file code refactoring, legal/financial corpus auditing, and multimodal research — offering a 1,048k context window, 420ms TTFT, and $1.25/1M input pricing ($0.310/1M 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: Gemini 3.1 Pro or GLM-5.3?

GLM-5.3 is cheaper at $0.35/1M input tokens ($1.00/1M output) compared to $1.25/1M input ($10.00/1M output) for Gemini 3.1 Pro.

Which model has lower TTFT latency and higher tok/s throughput: Gemini 3.1 Pro or GLM-5.3?

GLM-5.3 delivers faster first-token latency at 160ms TTFT (120 tok/s throughput) compared to 420ms TTFT (98 tok/s) for Gemini 3.1 Pro.

How do Gemini 3.1 Pro and GLM-5.3 compare on SWE-bench coding and GPQA Diamond reasoning?

On SWE-bench Verified software engineering, Gemini 3.1 Pro scores 71.8% versus 56% for GLM-5.3. On GPQA Diamond graduate-level STEM reasoning, Gemini 3.1 Pro scores 82.4% versus 67% for GLM-5.3 (and 96.8% vs 88% on MATH-500).

When should you choose Gemini 3.1 Pro?

Choose Gemini 3.1 Pro (Google) for complex enterprise architecture planning, multi-file code refactoring, legal/financial corpus auditing, and multimodal research — offering a 1,048k context window, 420ms TTFT, and $1.25/1M input pricing ($0.310/1M 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