DeepSeek R1 vs Google: Gemini 2.5 Flash Preview 09-2025
Compare DeepSeek R1 by DeepSeek against Google: Gemini 2.5 Flash Preview 09-2025 by Google AI, context windows of 128K vs 1.0M, tested across 51 shared challenges. Updated May 2026.
Which is better, DeepSeek R1 or Google: Gemini 2.5 Flash Preview 09-2025?
DeepSeek R1 and Google: Gemini 2.5 Flash Preview 09-2025 are both competitive models. DeepSeek R1 costs $0.55/M input tokens vs $0.3/M for Google: Gemini 2.5 Flash Preview 09-2025. Context windows: 128K vs 1049K tokens. Compare their real outputs side by side below.
Key Differences Between DeepSeek R1 and Google: Gemini 2.5 Flash Preview 09-2025
DeepSeek R1 is made by deepseek while Google: Gemini 2.5 Flash Preview 09-2025 is from google. DeepSeek R1 has a 128K token context window compared to Google: Gemini 2.5 Flash Preview 09-2025's 1049K. On pricing, DeepSeek R1 costs $0.55/M input tokens vs $0.3/M for Google: Gemini 2.5 Flash Preview 09-2025.
Per 1M tokens
Google: Gemini 2.5 Flash Preview 09-2025 wins input (1.8× cheaper)·DeepSeek R1 wins output (1.1× cheaper)
No community votes yet. On paper, Google: Gemini 2.5 Flash Preview 09-2025 has the edge — bigger model tier, newer, bigger context window.
Style Comparison
Google: Gemini 2.5 Flash Preview 09-2025 uses 3.1x more emoji
