Model comparison · updated 2026-07-28

GPT-5.6 TerravsGPT-5.6 Luna

Side-by-side pricing for1 million tokens

Price comparison

GPT-5.6 TerraGPT-5.6 LunaVerdict
ProviderOpenAIOpenAI--
Context window1.05M1.05M--
Input / 1M tokens$2.50$1GPT-5.6 Luna is 2.5x cheaper
Output / 1M tokens$15$6GPT-5.6 Luna is 2.5x cheaper
Output:input ratio6x6x--
Tierflagshipbudget--

What does $10 buy?

$10 of input

GPT-5.6 Terra

4,000,000 tokens

GPT-5.6 Luna

10,000,000 tokens

GPT-5.6 Luna gives you 2.5x more input for the same budget.

$10 of output

GPT-5.6 Terra

666,667 tokens

GPT-5.6 Luna

1,666,667 tokens

GPT-5.6 Luna gives you 2.5x more output for the same budget.

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