token.app › Compare › Claude Sonnet 4.5 (batch) vs Flint (free)

Claude Sonnet 4.5 (batch) vs Flint (free)

Flint (free) is free to use, against $3.00 per million tokens. Claude Sonnet 4.5 (batch) accepts the larger context window (1M).

Head to head
Blended price uses a 3:1 input:output mix
Claude Sonnet 4.5 (batch)Flint (free)
ProviderAnthropicRecursive
Input $/1M$1.50Free
Output $/1M$7.50Free
Blended $/1M$3.00Free
Context window1M262K
Max output64K236K
ReleasedSep 2025Oct 2026
LicenceProprietaryOpen weights
Choose Claude Sonnet 4.5 (batch) if…
  • Larger context window (1M)
Choose Flint (free) if…
  • Costs less per token — Free vs $3.00 blended
  • Open weights — self-hostable
  • Newer model (released Oct 2026)
FAQ
Which is better, Claude Sonnet 4.5 (batch) or Flint (free)?
We do not hold independently-run benchmark scores covering both Claude Sonnet 4.5 (batch) and Flint (free), so we make no quality claim. Their pricing and specifications are compared on this page.
Is Claude Sonnet 4.5 (batch) cheaper than Flint (free)?
Flint (free) is cheaper: Free versus $3.00 per million tokens blended at 3:1 input:output. Input alone: $1.50 vs Free. Output alone: $7.50 vs Free.
What context windows do Claude Sonnet 4.5 (batch) and Flint (free) have?
Claude Sonnet 4.5 (batch): 1,000,000 tokens. Flint (free): 262,144 tokens.
Who makes Claude Sonnet 4.5 (batch) and Flint (free)?
Claude Sonnet 4.5 (batch) is made by Anthropic. Flint (free) is made by Recursive.
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