Model Comparison

DeepSeek-V2.5 vs GPT-4.1

GPT-4.1 significantly outperforms across most benchmarks. DeepSeek-V2.5 is 20.0x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

DeepSeek-V2.5 outperforms in 0 benchmarks, while GPT-4.1 is better at 2 benchmarks (MMLU, SWE-Bench Verified).

GPT-4.1 significantly outperforms across most benchmarks.

Wed May 13 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-V2.5 costs less

For input processing, DeepSeek-V2.5 ($0.14/1M tokens) is 14.3x cheaper than GPT-4.1 ($2.00/1M tokens).

For output processing, DeepSeek-V2.5 ($0.28/1M tokens) is 28.6x cheaper than GPT-4.1 ($8.00/1M tokens).

In conclusion, GPT-4.1 is more expensive than DeepSeek-V2.5.*

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

Lowest available price from all providers
Wed May 13 2026 • llm-stats.com
DeepSeek
DeepSeek-V2.5
Input tokens$0.14
Output tokens$0.28
Best providerDeepSeek
OpenAI
GPT-4.1
Input tokens$2.00
Output tokens$8.00
Best providerOpenAI
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Context Window

Maximum input and output token capacity

GPT-4.1 accepts 1,047,576 input tokens compared to DeepSeek-V2.5's 8,192 tokens. GPT-4.1 can generate longer responses up to 32,768 tokens, while DeepSeek-V2.5 is limited to 8,192 tokens.

DeepSeek
DeepSeek-V2.5
Input8,192 tokens
Output8,192 tokens
OpenAI
GPT-4.1
Input1,047,576 tokens
Output32,768 tokens
Wed May 13 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-4.1 supports multimodal inputs, whereas DeepSeek-V2.5 does not.

GPT-4.1 can handle both text and other forms of data like images, making it suitable for multimodal applications.

DeepSeek-V2.5

Text
Images
Audio
Video

GPT-4.1

Text
Images
Audio
Video

License

Usage and distribution terms

DeepSeek-V2.5 is licensed under deepseek, while GPT-4.1 uses a proprietary license.

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

DeepSeek-V2.5

deepseek

Open weights

GPT-4.1

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek-V2.5 was released on 2024-05-08, while GPT-4.1 was released on 2025-04-14.

GPT-4.1 is 11 months newer than DeepSeek-V2.5.

DeepSeek-V2.5

May 8, 2024

2.0 years ago

GPT-4.1

Apr 14, 2025

1.1 years ago

11mo newer

Knowledge Cutoff

When training data ends

GPT-4.1 has a documented knowledge cutoff of 2024-06-01, while DeepSeek-V2.5's cutoff date is not specified.

We can confirm GPT-4.1's training data extends to 2024-06-01, but cannot make a direct comparison without DeepSeek-V2.5's cutoff date.

DeepSeek-V2.5

—

GPT-4.1

Jun 2024

Provider Availability

DeepSeek-V2.5 is available from DeepSeek, DeepInfra, Hyperbolic. GPT-4.1 is available from OpenAI.

DeepSeek-V2.5

deepseek logo
DeepSeek
Input Price:Input: $0.14/1MOutput Price:Output: $0.28/1M
deepinfra logo
Deepinfra
Input Price:Input: $0.70/1MOutput Price:Output: $1.40/1M
hyperbolic logo
Hyperbolic
Input Price:Input: $2.00/1MOutput Price:Output: $2.00/1M

GPT-4.1

openai logo
OpenAI
Input Price:Input: $2.00/1MOutput Price:Output: $8.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

DeepSeek
Less expensive input tokens
Less expensive output tokens
Has open weights
OpenAI
Larger context window (1,047,576 tokens)
Supports multimodal inputs
Higher MMLU score (90.2% vs 80.4%)
Higher SWE-Bench Verified score (54.6% vs 16.8%)
DeepSeekDeepSeek-V2.5
OpenAIGPT-4.1
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Detailed Comparison

AI Model Comparison Table
Feature
DeepSeek
DeepSeek-V2.5
OpenAI
GPT-4.1

FAQ

Common questions about DeepSeek-V2.5 vs GPT-4.1.

Which is better, DeepSeek-V2.5 or GPT-4.1?

GPT-4.1 significantly outperforms across most benchmarks. DeepSeek-V2.5 is made by DeepSeek and GPT-4.1 is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does DeepSeek-V2.5 compare to GPT-4.1 in benchmarks?

DeepSeek-V2.5 scores GSM8k: 95.1%, MT-Bench: 90.2%, HumanEval: 89.0%, BBH: 84.3%, AlignBench: 80.4%. GPT-4.1 scores MMLU: 90.2%, CharXiv-D: 87.9%, IFEval: 87.4%, MMMLU: 87.3%, MMMU: 74.8%.

Is DeepSeek-V2.5 cheaper than GPT-4.1?

DeepSeek-V2.5 is 14.3x cheaper for input tokens. DeepSeek-V2.5 costs $0.14/M input and $0.28/M output via deepseek. GPT-4.1 costs $2.00/M input and $8.00/M output via openai.

What are the context window sizes for DeepSeek-V2.5 and GPT-4.1?

DeepSeek-V2.5 supports 8K tokens and GPT-4.1 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between DeepSeek-V2.5 and GPT-4.1?

Key differences include context window (8K vs 1.0M), input pricing ($0.14 vs $2.00/M), multimodal support (no vs yes), licensing (deepseek vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes DeepSeek-V2.5 and GPT-4.1?

DeepSeek-V2.5 is developed by DeepSeek and GPT-4.1 is developed by OpenAI.