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Gemini 1.5 Pro vs GPT OSS 20B
Comprehensive side-by-side LLM comparison
Gemini 1.5 Pro leads with 46.5% higher average benchmark score. Gemini 1.5 Pro offers 1.8M more tokens in context window than GPT OSS 20B. GPT OSS 20B is $12.25 cheaper per million tokens. Gemini 1.5 Pro supports multimodal inputs. GPT OSS 20B is available on 4 providers. Overall, Gemini 1.5 Pro is the stronger choice for coding tasks.
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Gemini 1.5 Pro is a multimodal language model developed by Google. It achieves strong performance with an average score of 72.6% across 23 benchmarks. It excels particularly in XSTest (98.8%), HellaSwag (93.3%), GSM8k (90.8%). With a 2.1M token context window, it can handle extensive documents and complex multi-turn conversations. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2024, it represents Google's latest advancement in AI technology.
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OpenAI
GPT OSS 20B is a language model developed by OpenAI. The model shows competitive results across 7 benchmarks. It excels particularly in MMLU (85.3%), CodeForces (83.9%), GPQA (71.5%). It supports a 262K token context window for handling large documents. The model is available through 4 API providers. It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents OpenAI's latest advancement in AI technology.
1 year newer
Gemini 1.5 Pro
2024-05-01
GPT OSS 20B
OpenAI
2025-08-05
Pricing Comparison
Cost per million tokens (USD)
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Gemini 1.5 Pro
Input:$2.50
Output:$10.00
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GPT OSS 20B
Input:$0.05
Output:$0.20($12.25 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 28 common benchmarks
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Gemini 1.5 Pro
Average Score:59.6%(+46.5%)
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GPT OSS 20B
Average Score:13.1%
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Knowledge Cutoff
Training data recency comparison
Gemini 1.5 Pro
2023-11-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Gemini 1.5 Pro
1 providers
Throughput: 85 tok/s
Latency: 0.7ms
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GPT OSS 20B
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Gemini 1.5 Pro
Avg Score:59.6%(+46.5%)
Providers:1
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GPT OSS 20B
Avg Score:13.1%
Providers:4