token.app › Compare › Gemini 3.8 Flash vs Grok 4.6

Gemini 3.8 Flash vs Grok 4.6

Gemini 3.8 Flash is 1.8× cheaper per token on a blended 3:1 basis. Gemini 3.8 Flash accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
Gemini 3.8 FlashGrok 4.6
ProviderGoogleSpaceXAI
Input $/1M$0.825$2.00
Output $/1M$4.13$6.00
Blended $/1M$1.65$3.00
Context window1.0M500K
Max output66K450K
ReleasedSep 2026Aug 2026
LicenceProprietaryProprietary
Choose Gemini 3.8 Flash if…
  • Costs less per token — $1.65 vs $3.00 blended
  • Larger context window (1.0M)
  • Newer model (released Sep 2026)
Choose Grok 4.6 if…
  • No clear advantage on the data we hold.
FAQ
Which is better, Gemini 3.8 Flash or Grok 4.6?
We do not hold independently-run benchmark scores covering both Gemini 3.8 Flash and Grok 4.6, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Gemini 3.8 Flash cheaper than Grok 4.6?
Gemini 3.8 Flash is cheaper: $1.65 versus $3.00 per million tokens blended at 3:1 input:output. Input alone: $0.825 vs $2.00. Output alone: $4.13 vs $6.00.
What context windows do Gemini 3.8 Flash and Grok 4.6 have?
Gemini 3.8 Flash: 1,048,576 tokens. Grok 4.6: 500,000 tokens.
Who makes Gemini 3.8 Flash and Grok 4.6?
Gemini 3.8 Flash is made by Google. Grok 4.6 is made by SpaceXAI.
Related comparisons