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Gemini 3 Flash vs GPT-OSS-20B
Comprehensive side-by-side LLM comparison
Gemini 3 Flash offers 876.1K more tokens in context window than GPT-OSS-20B. Gemini 3 Flash is $Infinity cheaper per million tokens. Gemini 3 Flash supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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Google DeepMind
Gemini 3 Flash, released by Google in December 2025, is a large language model from the Gemini 3 family that delivers reasoning and coding performance with efficiency optimized for high-volume workloads. It features a 1M token context window, 64K maximum output tokens, and native support for text, image, audio, video, and PDF input. Gemini 3 Flash targets cost-sensitive agentic workflows, document processing, and production APIs requiring fast, capable multimodal responses.
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OpenAI
GPT-OSS-20B is an open-weight large language model with 20 billion parameters from OpenAI's open-source model initiative. It targets deployments requiring a smaller, efficient model that can run on consumer or mid-tier hardware while maintaining strong reasoning and coding capabilities relative to its size.
4 months newer
GPT-OSS-20B
OpenAI
2025-08-05
Gemini 3 Flash
Google DeepMind
2025-12-17
Pricing Comparison
Cost per million tokens (USD)
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Gemini 3 Flash
Input:$0.10
Output:$0.40($Infinity cheaper)
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GPT-OSS-20B
Input:$Infinity
Output:$Infinity
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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Gemini 3 Flash
2 providers
Google Cloud Vertex AI
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GPT-OSS-20B
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Gemini 3 Flash
Avg Score:0.0%
Providers:2
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GPT-OSS-20B
Avg Score:0.0%
Providers:1