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Gemini 2.5 Pro vs GPT-5.1
Comprehensive side-by-side LLM comparison
GPT-5.1 leads with 18.2% higher average benchmark score. Gemini 2.5 Pro is available on 2 providers. Overall, GPT-5.1 is the stronger choice for coding tasks.
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Google DeepMind
Gemini 2.5 Pro, released by Google in May 2025, is a large language model from the Gemini 2.5 family designed for complex reasoning, coding, and long-context analysis tasks. It features a 1M token context window, native support for text, image, video, and audio input, and integrated thinking capabilities for multi-step problem solving. Gemini 2.5 Pro targets advanced coding workflows, scientific reasoning, and applications requiring deep understanding across large, mixed-modality contexts.
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OpenAI
GPT-5.1, released by OpenAI in November 2025, is a large language model from the GPT-5 family that delivers incremental improvements in reasoning, instruction following, and multimodal understanding over GPT-5. It features a 400K token context window and targets general-purpose development, long-context analysis, and agentic workflows.
5 months newer
Gemini 2.5 Pro
Google DeepMind
2025-05-20
GPT-5.1
OpenAI
2025-11
Performance Metrics
Context window and performance specifications
Average performance across 3 common benchmarks
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Gemini 2.5 Pro
Average Score:51.3%
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GPT-5.1
Average Score:69.5%(+18.2%)
Performance comparison across key benchmark categories
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Gemini 2.5 Pro
Science77.2%
Multimodal68.0%
Tool Use8.8%
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Provider Availability & Performance
Available providers and their performance metrics
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Gemini 2.5 Pro
2 providers
Google Cloud Vertex AI
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GPT-5.1
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Gemini 2.5 Pro
Avg Score:51.3%
Providers:2
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GPT-5.1
Avg Score:69.5%(+18.2%)
Providers:0