💰 Unit Cost Winner GLM-5.3-Flash $0.12/1M in · $0.40/1M out
⚡ Latency & Speed Winner GLM-5.3-Flash 90ms TTFT · 175 tok/s
💻 Coding (SWE) Winner GLM-5.3-Flash 52.8% SWE-bench · 89% HumanEval
🧠 STEM Reasoning Winner DeepSeek R1 71.5% GPQA · 97.3% MATH-500

Which model is better: DeepSeek R1 or GLM-5.3-Flash?

GLM-5.3-Flash is 78.2% cheaper for input tokens ($0.12 vs. $0.55 per 1M tokens) and $0.40 vs. $2.19 for output tokens (4.6x cost advantage). In terms of operational performance, GLM-5.3-Flash delivers lower response latency at 90ms TTFT (1360ms faster than DeepSeek R1) with 175 vs. 58 tok/s throughput. GLM-5.3-Flash leads coding evaluations at 52.8% SWE-bench Verified vs. 49.2% for DeepSeek R1 and 63.5% vs. 71.5% 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 DeepSeek R1 GLM-5.3-Flash Net Delta / Advantage
Input Cost / 1M Tokens $0.55 $0.12 GLM-5.3-Flash is 4.6x cheaper
Output Cost / 1M Tokens $2.19 $0.40 GLM-5.3-Flash (81.7% lower)
Prompt Cache Read / 1M $0.140 $0.030 GLM-5.3-Flash is 4.7x cheaper
Prompt Cache Write / 1M $0.55 $0.12 GLM-5.3-Flash is 4.6x cheaper
Context Window (Max Output) 131k (33k out) 262k (16k out) GLM-5.3-Flash (2.0x larger context)
Avg TTFT Response Latency 1450ms 90ms GLM-5.3-Flash (1360ms faster)
Generation Speed (Throughput) 58 tok/s 175 tok/s GLM-5.3-Flash (+117 tok/s faster)
SWE-bench Verified (Coding) 49.2% 52.8% GLM-5.3-Flash (+3.6% lead)
GPQA Diamond (PhD STEM) 71.5% 63.5% DeepSeek R1 (+8.0% lead)
MMLU-Pro (Multi-Discipline) 84% 78.4% DeepSeek R1 (+5.6% lead)
MATH-500 (Quantitative Logic) 97.3% 84% DeepSeek R1 (+13.3% lead)
Inference Value Score (IVR) 64.8 / 100 76.7 / 100 GLM-5.3-Flash (+11.9 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

DeepSeek R1 $19.58

$0.55/1M in · $2.19/1M out

Prompt Cache: $0.140/1M read · $0.55/1M write

GLM-5.3-Flash $3.88

$0.12/1M in · $0.40/1M out

Prompt Cache: $0.030/1M read · $0.12/1M write

Projected Monthly Cost Reduction
$15.70 / mo
(80.2% lower cost with GLM-5.3-Flash)
Open Full Matchup Analysis →
A

When to Choose DeepSeek R1

Choose DeepSeek R1 (DeepSeek) for open-weight chain-of-thought reasoning, synthetic data distillation, and complex mathematical verification — offering a 131k context window, 1450ms TTFT, and $0.55/1M input pricing ($0.140/1M cached reads).

B

When to Choose GLM-5.3-Flash

Choose GLM-5.3-Flash (Zhipu AI) for sub-100ms ultra-fast inference model designed for real-time customer support, document classification, and agentic workflows — offering a 262k context window, 90ms TTFT, and $0.12/1M input pricing ($0.030/1M cached reads).

Related Questions & Decision Factors

Which is cheaper: DeepSeek R1 or GLM-5.3-Flash?

GLM-5.3-Flash is cheaper at $0.12/1M input tokens ($0.40/1M output) compared to $0.55/1M input ($2.19/1M output) for DeepSeek R1.

Which model has lower TTFT latency and higher tok/s throughput: DeepSeek R1 or GLM-5.3-Flash?

GLM-5.3-Flash delivers faster first-token latency at 90ms TTFT (175 tok/s throughput) compared to 1450ms TTFT (58 tok/s) for DeepSeek R1.

How do DeepSeek R1 and GLM-5.3-Flash compare on SWE-bench coding and GPQA Diamond reasoning?

On SWE-bench Verified software engineering, DeepSeek R1 scores 49.2% versus 52.8% for GLM-5.3-Flash. On GPQA Diamond graduate-level STEM reasoning, DeepSeek R1 scores 71.5% versus 63.5% for GLM-5.3-Flash (and 97.3% vs 84% on MATH-500).

When should you choose DeepSeek R1?

Choose DeepSeek R1 (DeepSeek) for open-weight chain-of-thought reasoning, synthetic data distillation, and complex mathematical verification — offering a 131k context window, 1450ms TTFT, and $0.55/1M input pricing ($0.140/1M cached reads).

When should you choose GLM-5.3-Flash?

Choose GLM-5.3-Flash (Zhipu AI) for sub-100ms ultra-fast inference model designed for real-time customer support, document classification, and agentic workflows — offering a 262k context window, 90ms TTFT, and $0.12/1M input pricing ($0.030/1M cached reads).

Explore High-Priority Related Model Matchups