Comprehensive side-by-side LLM comparison
Grok 3 offers 8.2K more tokens in context window than Gemini 3 Flash. Gemini 3 Flash is $17.50 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
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.
xAI
Grok 3, released by xAI in February 2025, is a large language model trained on xAI's Colossus supercluster with substantially increased compute over previous generations. It features a 1M token context window, RL-enhanced Think mode for extended reasoning, and demonstrated strong results on mathematics, coding, and scientific benchmarks. Grok 3 targets complex reasoning, real-time information tasks via X platform integration, and agentic workflows via the xAI API.
10 months newer

Grok 3
xAI
2025-02-17

Gemini 3 Flash
Google DeepMind
2025-12-17
Cost per million tokens (USD)
Gemini 3 Flash
Grok 3
Context window and performance specifications
Available providers and their performance metrics
Gemini 3 Flash
Google Cloud Vertex AI
Grok 3
Gemini 3 Flash
Grok 3
Gemini 3 Flash
Grok 3
xAI