DeepSeek R1 0528 vs GPT-4.5
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
DeepSeek R1 0528 by DeepSeek wins on 11 of 15 benchmarks against GPT-4.5 by OpenAI, which leads on 3. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from the AI Value Index.
Category-by-Category Breakdown
General Intelligence: In general intelligence, DeepSeek R1 0528 scores 1375 on Chatbot Arena ELO compared to GPT-4.5's 1310, while DeepSeek R1 0528 scores 84.0% on MMLU-Pro compared to GPT-4.5's 78.0%, while DeepSeek R1 0528 scores 88.0% on IFEval compared to GPT-4.5's 86.0%.
Coding: In coding, both score 88.0% on HumanEval+, while DeepSeek R1 0528 scores 55.0% on SWE-bench Verified compared to GPT-4.5's 38.0%, while DeepSeek R1 0528 scores 58.0% on LiveCodeBench compared to GPT-4.5's 45.0%.
Math: In math, DeepSeek R1 0528 scores 96.0% on MATH compared to GPT-4.5's 82.0%, while DeepSeek R1 0528 scores 97.5% on GSM8K compared to GPT-4.5's 94.0%.
Reasoning: In reasoning, DeepSeek R1 0528 scores 81.0% on GPQA Diamond compared to GPT-4.5's 71.4%, while GPT-4.5 scores 20.0% on ARC-AGI compared to DeepSeek R1 0528's 15.0%.
Context: In context, DeepSeek R1 0528 scores 131K on Context Length compared to GPT-4.5's 128K.
Pricing Comparison
DeepSeek R1 0528 costs $0.55/1M input tokens and $2.2/1M output tokens, while GPT-4.5 costs $75.0/1M input and $150.0/1M output. DeepSeek R1 0528 is the more affordable option for API usage.
Speed Comparison
DeepSeek R1 0528 generates output at 40 tok/s compared to GPT-4.5's 60 tok/s, and the time to first token is 900 ms for DeepSeek R1 0528 versus 600 ms for GPT-4.5. GPT-4.5 delivers faster throughput.
Verdict
For developers prioritizing coding and general intelligence and math and affordability, DeepSeek R1 0528 has the edge. For those who value speed, GPT-4.5 is the stronger choice.
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DeepSeek R1 0528 vs GPT-4.5 — FAQ
Which is better, DeepSeek R1 0528 or GPT-4.5?
DeepSeek R1 0528 wins on more benchmarks overall (11 vs 3). However, the best choice depends on your specific needs — each model excels in different areas.
How does DeepSeek R1 0528 compare to GPT-4.5 for coding?
DeepSeek R1 0528 is better for coding, scoring 55.0% on SWE-bench Verified compared to 38.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is DeepSeek R1 0528 cheaper than GPT-4.5?
Yes, DeepSeek R1 0528 is cheaper. DeepSeek R1 0528 costs $0.55/1M input and $2.2/1M output tokens. GPT-4.5 costs $75.0/1M input and $150.0/1M output tokens.
Which is faster, DeepSeek R1 0528 or GPT-4.5?
GPT-4.5 is faster, generating output at 60 tok/s compared to 40 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the DeepSeek R1 0528 vs GPT-4.5 comparison cover?
This comparison covers 15 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, IFEval, MATH, SWE-bench Verified, GPQA Diamond, Output Speed, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.