token.app › Compare › Gemini 3 Flash Preview vs Grok 4.6

Gemini 3 Flash Preview vs Grok 4.6

Grok 4.6 leads on 4 of 4 shared benchmarks. Gemini 3 Flash Preview is 2.7× cheaper per token on a blended 3:1 basis. Gemini 3 Flash Preview accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
Gemini 3 Flash PreviewGrok 4.6
ProviderGoogleSpaceXAI
Input $/1M$0.500$2.00
Output $/1M$3.00$6.00
Blended $/1M$1.13$3.00
Context window1.0M500K
Max output66K450K
ReleasedDec 2025Aug 2026
LicenceProprietaryProprietary
GPQA Diamond 89.4% 94.0%
FrontierMath T1–3 51.2% 66.0%
FrontierMath T4 17.1% 31.7%
OTIS Mock AIME 95.6% 99.2%
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Gemini 3 Flash Preview if…
  • Costs less per token — $1.13 vs $3.00 blended
  • Larger context window (1.0M)
Choose Grok 4.6 if…
  • Higher GPQA Diamond (94.0% vs 89.4%)
  • Higher FrontierMath T1–3 (66.0% vs 51.2%)
  • Higher FrontierMath T4 (31.7% vs 17.1%)
  • Higher OTIS Mock AIME (99.2% vs 95.6%)
  • Newer model (released Aug 2026)
FAQ
Which is better, Gemini 3 Flash Preview or Grok 4.6?
Across the 4 benchmarks both models have independently-run scores for, Gemini 3 Flash Preview leads on 0 and Grok 4.6 leads on 4. Benchmarks are one input — price and context window are on this page too.
Is Gemini 3 Flash Preview cheaper than Grok 4.6?
Gemini 3 Flash Preview is cheaper: $1.13 versus $3.00 per million tokens blended at 3:1 input:output. Input alone: $0.500 vs $2.00. Output alone: $3.00 vs $6.00.
What context windows do Gemini 3 Flash Preview and Grok 4.6 have?
Gemini 3 Flash Preview: 1,048,576 tokens. Grok 4.6: 500,000 tokens.
Who makes Gemini 3 Flash Preview and Grok 4.6?
Gemini 3 Flash Preview is made by Google. Grok 4.6 is made by SpaceXAI.
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