token.app › Compare › GPT-5 Codex (batch) vs Muse Spark 1.2

GPT-5 Codex (batch) vs Muse Spark 1.2

GPT-5 Codex (batch) is 1.2× cheaper per token on a blended 3:1 basis. Muse Spark 1.2 accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
GPT-5 Codex (batch)Muse Spark 1.2
ProviderOpenAIMeta
Input $/1M$0.625$1.25
Output $/1M$5.00$4.25
Blended $/1M$1.72$2.00
Context window400K1.0M
Max output128K—
ReleasedSep 2025Aug 2026
LicenceProprietaryProprietary
Choose GPT-5 Codex (batch) if…
  • Costs less per token — $1.72 vs $2.00 blended
Choose Muse Spark 1.2 if…
  • Larger context window (1.0M)
  • Newer model (released Aug 2026)
FAQ
Which is better, GPT-5 Codex (batch) or Muse Spark 1.2?
We do not hold independently-run benchmark scores covering both GPT-5 Codex (batch) and Muse Spark 1.2, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT-5 Codex (batch) cheaper than Muse Spark 1.2?
GPT-5 Codex (batch) is cheaper: $1.72 versus $2.00 per million tokens blended at 3:1 input:output. Input alone: $0.625 vs $1.25. Output alone: $5.00 vs $4.25.
What context windows do GPT-5 Codex (batch) and Muse Spark 1.2 have?
GPT-5 Codex (batch): 400,000 tokens. Muse Spark 1.2: 1,048,576 tokens.
Who makes GPT-5 Codex (batch) and Muse Spark 1.2?
GPT-5 Codex (batch) is made by OpenAI. Muse Spark 1.2 is made by Meta.
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