+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Gemini 3 Flash vs GPT-5.2
Comprehensive side-by-side LLM comparison
GPT-5.2 leads with 6.8% higher average benchmark score. Gemini 3 Flash is available on 2 providers. Overall, GPT-5.2 is the stronger choice for coding tasks.
+
+
+
+
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.
+
+
+
+
OpenAI
GPT-5.2, released by OpenAI on December 11, 2025, is a large language model from the GPT-5 family that improves on GPT-5 in general intelligence, long-context understanding, agentic tool-calling, and vision. It features a 400K token context window, 128K maximum output tokens, and a knowledge cutoff of August 2025. GPT-5.2 targets long-context coding tasks, extended document analysis, and complex agentic workflows requiring reliable instruction following.
6 days newer
GPT-5.2
OpenAI
2025-12-11
Gemini 3 Flash
Google DeepMind
2025-12-17
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
+
+
+
+
Gemini 3 Flash
Average Score:55.6%
+
+
+
+
GPT-5.2
Average Score:62.5%(+6.8%)
Performance comparison across key benchmark categories
+
+
+
+
Gemini 3 Flash
Coding63.0%
Reasoning33.6%
+
+
+
+
GPT-5.2
Coding
+
+
+
+
Knowledge Cutoff
Training data recency comparison
GPT-5.2
2025-08
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
Gemini 3 Flash
2 providers
Google Cloud Vertex AI
+
+
+
+
GPT-5.2
+
+
+
+
Gemini 3 Flash
Avg Score:55.6%
Providers:2
+
+
+
+
GPT-5.2
Avg Score:62.5%(+6.8%)
Providers:0