Model Comparison

Gemini 1.5 Pro vs DeepSeek-V2.5Which is better in 2026?

Both models are evenly matched across the benchmarks. DeepSeek-V2.5 is 25.0x cheaper per token.

Verdict: Gemini 1.5 Pro vs DeepSeek-V2.5 — which is better?

Gemini 1.5 Pro (by Google) and DeepSeek-V2.5 (by DeepSeek) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Gemini 1.5 Pro outperforms in 2 benchmarks (MATH, MMLU), while DeepSeek-V2.5 is better at 2 benchmarks (GSM8k, HumanEval). Both models are evenly matched across the benchmarks.

On price, DeepSeek-V2.5 is roughly 25.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 1.5 Pro also accepts a larger context window (2,097,152 input tokens), making it the stronger choice for long documents and large codebases.

Choose Gemini 1.5 Pro if…

  • you process long inputs — it offers a 2,097,152 token context window

Choose DeepSeek-V2.5 if…

  • cost matters — it's about 25.0x cheaper per token
  • you want the most recent training data — it shipped May 2024
  • you need open weights you can self-host or fine-tune
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Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Gemini 1.5 Pro outperforms in 2 benchmarks (MATH, MMLU), while DeepSeek-V2.5 is better at 2 benchmarks (GSM8k, HumanEval).

Both models are evenly matched across the benchmarks.

Fri Jun 19 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-V2.5 costs less

For input processing, Gemini 1.5 Pro ($2.50/1M tokens) is 17.9x more expensive than DeepSeek-V2.5 ($0.14/1M tokens).

For output processing, Gemini 1.5 Pro ($10.00/1M tokens) is 35.7x more expensive than DeepSeek-V2.5 ($0.28/1M tokens).

In conclusion, Gemini 1.5 Pro is more expensive than DeepSeek-V2.5.*

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

Lowest available price from all providers
Fri Jun 19 2026 • llm-stats.com
Google
Gemini 1.5 Pro
Input tokens$2.50
Output tokens$10.00
Best providerGoogle
DeepSeek
DeepSeek-V2.5
Input tokens$0.14
Output tokens$0.28
Best providerDeepSeek
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 1.5 Pro accepts 2,097,152 input tokens compared to DeepSeek-V2.5's 8,192 tokens. Both models can generate responses up to 8,192 tokens.

Google
Gemini 1.5 Pro
Input2,097,152 tokens
Output8,192 tokens
DeepSeek
DeepSeek-V2.5
Input8,192 tokens
Output8,192 tokens
Fri Jun 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 1.5 Pro supports multimodal inputs, whereas DeepSeek-V2.5 does not.

Gemini 1.5 Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 1.5 Pro

Text
Images
Audio
Video

DeepSeek-V2.5

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 1.5 Pro is licensed under a proprietary license, while DeepSeek-V2.5 uses deepseek.

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

Gemini 1.5 Pro

Proprietary

Closed source

DeepSeek-V2.5

deepseek

Open weights

Release Timeline

When each model was launched

Gemini 1.5 Pro was released on 2024-05-01, while DeepSeek-V2.5 was released on 2024-05-08.

DeepSeek-V2.5 is 0 month newer than Gemini 1.5 Pro.

Gemini 1.5 Pro

May 1, 2024

2.1 years ago

DeepSeek-V2.5

May 8, 2024

2.1 years ago

1w newer

Knowledge Cutoff

When training data ends

Gemini 1.5 Pro has a documented knowledge cutoff of 2023-11-01, while DeepSeek-V2.5's cutoff date is not specified.

We can confirm Gemini 1.5 Pro's training data extends to 2023-11-01, but cannot make a direct comparison without DeepSeek-V2.5's cutoff date.

Gemini 1.5 Pro

Nov 2023

DeepSeek-V2.5

—

Provider Availability

Gemini 1.5 Pro is available from Google. DeepSeek-V2.5 is available from DeepSeek, DeepInfra, Hyperbolic.

Gemini 1.5 Pro

google logo
Google
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M

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
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Larger context window (2,097,152 tokens)
Supports multimodal inputs
Higher MATH score (86.5% vs 74.7%)
Higher MMLU score (85.9% vs 80.4%)
DeepSeek
Less expensive input tokens
Less expensive output tokens
Has open weights
Higher GSM8k score (95.1% vs 90.8%)
Higher HumanEval score (89.0% vs 84.1%)

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 1.5 Pro
DeepSeek
DeepSeek-V2.5

FAQ

Common questions about Gemini 1.5 Pro vs DeepSeek-V2.5.

Which is better, Gemini 1.5 Pro or DeepSeek-V2.5?

Both models are evenly matched across the benchmarks. Gemini 1.5 Pro is made by Google and DeepSeek-V2.5 is made by DeepSeek. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 1.5 Pro compare to DeepSeek-V2.5 in benchmarks?

Gemini 1.5 Pro scores XSTest: 98.8%, FLEURS: 93.3%, HellaSwag: 93.3%, GSM8k: 90.8%, BIG-Bench Hard: 89.2%. DeepSeek-V2.5 scores GSM8k: 95.1%, MT-Bench: 90.2%, HumanEval: 89.0%, BBH: 84.3%, AlignBench: 80.4%.

Is Gemini 1.5 Pro cheaper than DeepSeek-V2.5?

DeepSeek-V2.5 is 17.9x cheaper for input tokens. Gemini 1.5 Pro costs $2.50/M input and $10.00/M output via google. DeepSeek-V2.5 costs $0.14/M input and $0.28/M output via deepseek.

What are the context window sizes for Gemini 1.5 Pro and DeepSeek-V2.5?

Gemini 1.5 Pro supports 2.1M tokens and DeepSeek-V2.5 supports 8K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 1.5 Pro and DeepSeek-V2.5?

Key differences include context window (2.1M vs 8K), input pricing ($2.50 vs $0.14/M), multimodal support (yes vs no), licensing (Proprietary vs deepseek). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 1.5 Pro and DeepSeek-V2.5?

Gemini 1.5 Pro is developed by Google and DeepSeek-V2.5 is developed by DeepSeek.

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