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Gemini 3 Pro vs GPT-5.1 Thinking
Comprehensive side-by-side LLM comparison
Gemini 3 Pro leads with 7.8% higher average benchmark score. Gemini 3 Pro is available on 2 providers. Overall, Gemini 3 Pro is the stronger choice for coding tasks.
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Google DeepMind
Gemini 3 Pro, released by Google in November 2025, is a large language model from the Gemini 3 family designed for complex reasoning, broad world knowledge, and multi-step problem solving. It features a 1M token context window, 64K maximum output tokens, and native multimodal input including text, images, audio, and video. Gemini 3 Pro targets research-grade reasoning, advanced data analysis, and applications requiring comprehensive understanding across diverse input formats.
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OpenAI
GPT-5.1 Thinking, released by OpenAI in November 2025, is an extended reasoning variant from the GPT-5.1 family that applies chain-of-thought processing to improve accuracy on complex reasoning, mathematics, and coding tasks. It targets analytical workflows where deliberate reasoning over a problem significantly improves output quality.
17 days newer
GPT-5.1 Thinking
OpenAI
2025-11
Gemini 3 Pro
Google DeepMind
2025-11-18
Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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Gemini 3 Pro
Average Score:57.8%(+7.8%)
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GPT-5.1 Thinking
Average Score:50.0%
Performance comparison across key benchmark categories
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Gemini 3 Pro
Coding78.0%(+1.7%)
Reasoning37.5%(+13.8%)
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GPT-5.1 Thinking
Provider Availability & Performance
Available providers and their performance metrics
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Gemini 3 Pro
2 providers
Google Cloud Vertex AI
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GPT-5.1 Thinking
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Gemini 3 Pro
Avg Score:57.8%(+7.8%)
Providers:2
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GPT-5.1 Thinking
Avg Score:50.0%
Providers:0