Gemini 3.1 Pro vs GPT OSS 20B High Comparison

Comparing Gemini 3.1 Pro and GPT OSS 20B High across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemini 3.1 Pro outperforms in 1 benchmarks (GPQA), while GPT OSS 20B High is better at 0 benchmarks.

Gemini 3.1 Pro significantly outperforms across most benchmarks.

Sat Mar 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT OSS 20B High costs less

For input processing, Gemini 3.1 Pro ($2.50/1M tokens) is 25.0x more expensive than GPT OSS 20B High ($0.10/1M tokens).

For output processing, Gemini 3.1 Pro ($15.00/1M tokens) is 30.0x more expensive than GPT OSS 20B High ($0.50/1M tokens).

In conclusion, Gemini 3.1 Pro is more expensive than GPT OSS 20B High.*

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

Lowest available price from all providers

Sat Mar 14 2026 • llm-stats.com

Gemini 3.1 Pro

Input tokens$2.50

Output tokens$15.00

Best providerGoogle

GPT OSS 20B High

Input tokens$0.10

Output tokens$0.50

Best providerOpenAI

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Context Window

Maximum input and output token capacity

Gemini 3.1 Pro accepts 1,048,576 input tokens compared to GPT OSS 20B High's 131,072 tokens. GPT OSS 20B High can generate longer responses up to 131,072 tokens, while Gemini 3.1 Pro is limited to 65,536 tokens.

Gemini 3.1 Pro

Input1,048,576 tokens

Output65,536 tokens

GPT OSS 20B High

Input131,072 tokens

Output131,072 tokens

Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 3.1 Pro supports multimodal inputs, whereas GPT OSS 20B High does not.

Gemini 3.1 Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 3.1 Pro

Text

Images

Audio

Video

GPT OSS 20B High

Text

Images

Audio

Video

License

Usage and distribution terms

Gemini 3.1 Pro is licensed under a proprietary license, while GPT OSS 20B High uses Apache 2.0.

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

Gemini 3.1 Pro

Proprietary

Closed source

GPT OSS 20B High

Apache 2.0

Open weights

Release Timeline

When each model was launched

Gemini 3.1 Pro was released on 2026-02-19, while GPT OSS 20B High was released on 2025-08-05.

Gemini 3.1 Pro is 7 months newer than GPT OSS 20B High.

Gemini 3.1 Pro

Feb 19, 2026

3 weeks ago

6mo newer

GPT OSS 20B High

Aug 5, 2025

7 months ago

Knowledge Cutoff

When training data ends

Gemini 3.1 Pro has a documented knowledge cutoff of 2025-01-31, while GPT OSS 20B High's cutoff date is not specified.

We can confirm Gemini 3.1 Pro's training data extends to 2025-01-31, but cannot make a direct comparison without GPT OSS 20B High's cutoff date.

Gemini 3.1 Pro

Jan 2025

GPT OSS 20B High

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Provider Availability

Gemini 3.1 Pro is available from Google. GPT OSS 20B High is available from OpenAI. The availability of providers can affect quality of the model and reliability.