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Gemini 2.5 Flash vs GPT OSS 120B
Comprehensive side-by-side LLM comparison
Gemini 2.5 Flash leads with 23.3% higher average benchmark score. Gemini 2.5 Flash offers 852.0K more tokens in context window than GPT OSS 120B. GPT OSS 120B is $2.26 cheaper per million tokens. Gemini 2.5 Flash supports multimodal inputs. GPT OSS 120B is available on 5 providers. Overall, Gemini 2.5 Flash is the stronger choice for coding tasks.
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Gemini 2.5 Flash is a multimodal language model developed by Google. It achieves strong performance with an average score of 62.5% across 14 benchmarks. It excels particularly in Global-MMLU-Lite (88.4%), AIME 2024 (88.0%), FACTS Grounding (85.3%). With a 1.1M token context window, it can handle extensive documents and complex multi-turn conversations. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents Google's latest advancement in AI technology.
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OpenAI
GPT OSS 120B is a language model developed by OpenAI. It achieves strong performance with an average score of 61.7% across 7 benchmarks. It excels particularly in MMLU (90.0%), CodeForces (87.4%), GPQA (80.1%). It supports a 262K token context window for handling large documents. The model is available through 5 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.
2 months newer
Gemini 2.5 Flash
2025-05-20
GPT OSS 120B
OpenAI
2025-08-05
Pricing Comparison
Cost per million tokens (USD)
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Gemini 2.5 Flash
Input:$0.30
Output:$2.50
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GPT OSS 120B
Input:$0.09
Output:$0.45($2.26 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 19 common benchmarks
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Gemini 2.5 Flash
Average Score:46.0%(+23.3%)
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GPT OSS 120B
Average Score:22.7%
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Knowledge Cutoff
Training data recency comparison
Gemini 2.5 Flash
2025-01-31
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 2.5 Flash
2 providers
Throughput: 85 tok/s
Latency: 0.7ms
ZeroEval
Throughput: 85 tok/s
Latency: 0.7ms
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Gemini 2.5 Flash
Avg Score:46.0%(+23.3%)
Providers:2
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GPT OSS 120B
Avg Score:22.7%
Providers:5