Gemini 2.5 Flash vs Grok 4

Gemini 2.5 Flash is cheaper on input ($0.30 vs $5.00 per 1M tokens), Gemini 2.5 Flash has the larger context window (1M).

SpecGemini 2.5 FlashGrok 4
ProviderGooglexAI
ModalityText + VisionText + Vision
Context window1Mbest256K
Input / 1M$0.30best$5.00
Output / 1M$1.20best$15.00
ReleasedSep 2025Dec 2025
Best forHigh-volume / cheap, Chat / Assistant, Image / VisionChat / Assistant, Code generation, Image / Vision

FAQ

Is Gemini 2.5 Flash cheaper than Grok 4?
Gemini 2.5 Flash is cheaper, at $0.30 per 1M input tokens versus $5.00.
Which has the larger context window, Gemini 2.5 Flash or Grok 4?
Gemini 2.5 Flash has the larger context window at 1M tokens.

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