token.app › Compare › Gemini 3.1 Pro Preview Custom Tools vs Flint (free)

Gemini 3.1 Pro Preview Custom Tools vs Flint (free)

Flint (free) is free to use, against $4.50 per million tokens. Gemini 3.1 Pro Preview Custom Tools accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
Gemini 3.1 Pro Preview Custom ToolsFlint (free)
ProviderGoogleRecursive
Input $/1M$2.00Free
Output $/1M$12.00Free
Blended $/1M$4.50Free
Context window1.0M262K
Max output66K236K
ReleasedFeb 2026Oct 2026
LicenceProprietaryOpen weights
Choose Gemini 3.1 Pro Preview Custom Tools if…
  • Larger context window (1.0M)
Choose Flint (free) if…
  • Costs less per token — Free vs $4.50 blended
  • Open weights — self-hostable
  • Newer model (released Oct 2026)
FAQ
Which is better, Gemini 3.1 Pro Preview Custom Tools or Flint (free)?
We do not hold independently-run benchmark scores covering both Gemini 3.1 Pro Preview Custom Tools and Flint (free), so we make no quality claim. Their pricing and specifications are compared on this page.
Is Gemini 3.1 Pro Preview Custom Tools cheaper than Flint (free)?
Flint (free) is cheaper: Free versus $4.50 per million tokens blended at 3:1 input:output. Input alone: $2.00 vs Free. Output alone: $12.00 vs Free.
What context windows do Gemini 3.1 Pro Preview Custom Tools and Flint (free) have?
Gemini 3.1 Pro Preview Custom Tools: 1,048,576 tokens. Flint (free): 262,144 tokens.
Who makes Gemini 3.1 Pro Preview Custom Tools and Flint (free)?
Gemini 3.1 Pro Preview Custom Tools is made by Google. Flint (free) is made by Recursive.
Related comparisons
Gemini 3.1 Pro Preview Custom Tools full details Flint (free) full details Gemini 3.1 Pro Preview Custom Tools vs MiniMax M3.1 Flash (free) Gemini 3.1 Pro Preview Custom Tools vs DeepSeek V4.1 Flash 1017 Gemini 3.1 Pro Preview Custom Tools vs Glimpse Gemini 3.1 Pro Preview Custom Tools vs Xing4.0 29B A4B (free) Gemini 3.1 Pro Preview Custom Tools vs Beam 1.0 501B A23B Gemini 3.1 Pro Preview Custom Tools vs Mercury 3