token.app › Compare › Claude Sonnet 4.5 (batch) vs Kimi K3

Claude Sonnet 4.5 (batch) vs Kimi K3

Claude Sonnet 4.5 (batch) is 2.0× cheaper per token on a blended 3:1 basis. Kimi K3 accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
Claude Sonnet 4.5 (batch)Kimi K3
ProviderAnthropicMoonshot AI
Input $/1M$1.50$3.00
Output $/1M$7.50$15.00
Blended $/1M$3.00$6.00
Context window1M1.0M
Max output64K—
ReleasedSep 2025Jul 2026
LicenceProprietaryOpen weights
Choose Claude Sonnet 4.5 (batch) if…
  • Costs less per token — $3.00 vs $6.00 blended
Choose Kimi K3 if…
  • Larger context window (1.0M)
  • Open weights — self-hostable
  • Newer model (released Jul 2026)
FAQ
Which is better, Claude Sonnet 4.5 (batch) or Kimi K3?
We do not hold independently-run benchmark scores covering both Claude Sonnet 4.5 (batch) and Kimi K3, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Claude Sonnet 4.5 (batch) cheaper than Kimi K3?
Claude Sonnet 4.5 (batch) is cheaper: $3.00 versus $6.00 per million tokens blended at 3:1 input:output. Input alone: $1.50 vs $3.00. Output alone: $7.50 vs $15.00.
What context windows do Claude Sonnet 4.5 (batch) and Kimi K3 have?
Claude Sonnet 4.5 (batch): 1,000,000 tokens. Kimi K3: 1,048,576 tokens.
Who makes Claude Sonnet 4.5 (batch) and Kimi K3?
Claude Sonnet 4.5 (batch) is made by Anthropic. Kimi K3 is made by Moonshot AI.
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