Model Comparison

GPT-5 High vs DeepSeek-R1-0528

GPT-5 High significantly outperforms across most benchmarks. DeepSeek-R1-0528 is 3.8x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

GPT-5 High outperforms in 2 benchmarks (AIME 2025, GPQA), while DeepSeek-R1-0528 is better at 0 benchmarks.

GPT-5 High significantly outperforms across most benchmarks.

Wed Apr 15 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-R1-0528 costs less

For input processing, GPT-5 High ($1.25/1M tokens) is 2.5x more expensive than DeepSeek-R1-0528 ($0.50/1M tokens).

For output processing, GPT-5 High ($10.00/1M tokens) is 4.7x more expensive than DeepSeek-R1-0528 ($2.15/1M tokens).

In conclusion, GPT-5 High is more expensive than DeepSeek-R1-0528.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Wed Apr 15 2026 • llm-stats.com
OpenAI
GPT-5 High
Input tokens$1.25
Output tokens$10.00
Best providerOpenAI
DeepSeek
DeepSeek-R1-0528
Input tokens$0.50
Output tokens$2.15
Best providerDeepinfra
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-5 High accepts 400,000 input tokens compared to DeepSeek-R1-0528's 131,072 tokens. DeepSeek-R1-0528 can generate longer responses up to 131,072 tokens, while GPT-5 High is limited to 128,000 tokens.

OpenAI
GPT-5 High
Input400,000 tokens
Output128,000 tokens
DeepSeek
DeepSeek-R1-0528
Input131,072 tokens
Output131,072 tokens
Wed Apr 15 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-5 High supports multimodal inputs, whereas DeepSeek-R1-0528 does not.

GPT-5 High can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-5 High

Text
Images
Audio
Video

DeepSeek-R1-0528

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5 High is licensed under a proprietary license, while DeepSeek-R1-0528 uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

GPT-5 High

Proprietary

Closed source

DeepSeek-R1-0528

MIT

Open weights

Release Timeline

When each model was launched

GPT-5 High was released on 2025-08-07, while DeepSeek-R1-0528 was released on 2025-05-28.

GPT-5 High is 2 months newer than DeepSeek-R1-0528.

GPT-5 High

Aug 7, 2025

8 months ago

2mo newer
DeepSeek-R1-0528

May 28, 2025

10 months ago

Knowledge Cutoff

When training data ends

GPT-5 High has a documented knowledge cutoff of 2024-09-30, while DeepSeek-R1-0528's cutoff date is not specified.

We can confirm GPT-5 High's training data extends to 2024-09-30, but cannot make a direct comparison without DeepSeek-R1-0528's cutoff date.

GPT-5 High

Sep 2024

DeepSeek-R1-0528

—

Provider Availability

GPT-5 High is available from OpenAI. DeepSeek-R1-0528 is available from DeepInfra, DeepSeek, Novita.

GPT-5 High

openai logo
OpenAI
Input Price:Input: $1.25/1MOutput Price:Output: $10.00/1M

DeepSeek-R1-0528

deepinfra logo
Deepinfra
Input Price:Input: $0.50/1MOutput Price:Output: $2.15/1M
deepseek logo
DeepSeek
Input Price:Input: $0.55/1MOutput Price:Output: $2.19/1M
novita logo
Novita
Input Price:Input: $0.70/1MOutput Price:Output: $2.50/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (400,000 tokens)
Supports multimodal inputs
Higher AIME 2025 score (94.6% vs 87.5%)
Higher GPQA score (87.3% vs 81.0%)
DeepSeek
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5 High
DeepSeek
DeepSeek-R1-0528

FAQ

Common questions about GPT-5 High vs DeepSeek-R1-0528

GPT-5 High significantly outperforms across most benchmarks. GPT-5 High is made by OpenAI and DeepSeek-R1-0528 is made by DeepSeek. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
GPT-5 High scores AIME 2025: 94.6%, GPQA: 87.3%. DeepSeek-R1-0528 scores MMLU-Redux: 93.4%, SimpleQA: 92.3%, AIME 2024: 91.4%, AIME 2025: 87.5%, MMLU-Pro: 85.0%.
DeepSeek-R1-0528 is 2.5x cheaper for input tokens. GPT-5 High costs $1.25/M input and $10.00/M output via openai. DeepSeek-R1-0528 costs $0.50/M input and $2.15/M output via deepinfra.
GPT-5 High supports 400K tokens and DeepSeek-R1-0528 supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (400K vs 131K), input pricing ($1.25 vs $0.50/M), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.
GPT-5 High is developed by OpenAI and DeepSeek-R1-0528 is developed by DeepSeek.