token.app › Compare › GPT-5 Codex (batch) vs Kimi K3

GPT-5 Codex (batch) vs Kimi K3

GPT-5 Codex (batch) is 3.5× 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
GPT-5 Codex (batch)Kimi K3
ProviderOpenAIMoonshot AI
Input $/1M$0.625$3.00
Output $/1M$5.00$15.00
Blended $/1M$1.72$6.00
Context window400K1.0M
Max output128K—
ReleasedSep 2025Jul 2026
LicenceProprietaryOpen weights
Choose GPT-5 Codex (batch) if…
  • Costs less per token — $1.72 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, GPT-5 Codex (batch) or Kimi K3?
We do not hold independently-run benchmark scores covering both GPT-5 Codex (batch) and Kimi K3, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT-5 Codex (batch) cheaper than Kimi K3?
GPT-5 Codex (batch) is cheaper: $1.72 versus $6.00 per million tokens blended at 3:1 input:output. Input alone: $0.625 vs $3.00. Output alone: $5.00 vs $15.00.
What context windows do GPT-5 Codex (batch) and Kimi K3 have?
GPT-5 Codex (batch): 400,000 tokens. Kimi K3: 1,048,576 tokens.
Who makes GPT-5 Codex (batch) and Kimi K3?
GPT-5 Codex (batch) is made by OpenAI. Kimi K3 is made by Moonshot AI.
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