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Gemini 2.5 Pro vs GPT-5.3 Codex
Comprehensive side-by-side LLM comparison
Gemini 2.5 Pro supports multimodal inputs. Gemini 2.5 Pro is available on 2 providers. Both models have their strengths depending on your specific coding needs.
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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-5.3 Codex, released by OpenAI in February 2026, is a coding-specialized large language model from the GPT-5.3 family. It targets software engineering workflows including automated code generation, test writing, and agentic multi-file editing, built on the incremental improvements of the GPT-5.3 generation.
8 months newer
Gemini 2.5 Pro
Google DeepMind
2025-05-20
GPT-5.3 Codex
OpenAI
2026-02
Performance Metrics
Context window and performance specifications
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-5.3 Codex
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Gemini 2.5 Pro
Avg Score:0.0%
Providers:2
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GPT-5.3 Codex
Avg Score:0.0%
Providers:0