Model comparison · updated 2026-07-28

Claude Sonnet 5vsGPT-5.6 Luna

Side-by-side pricing for1 million tokens

Price comparison

Claude Sonnet 5GPT-5.6 LunaVerdict
ProviderAnthropicOpenAI--
Context window1M1.05M--
Input / 1M tokens$2$1GPT-5.6 Luna is 2x cheaper
Output / 1M tokens$10$6GPT-5.6 Luna is 1.7x cheaper
Output:input ratio5x6x--
Tierbalancedbudget--

Claude Sonnet 5: Introductory pricing — list price is $3 / $15 from Sep 1, 2026.

What does $10 buy?

$10 of input

Claude Sonnet 5

5,000,000 tokens

GPT-5.6 Luna

10,000,000 tokens

GPT-5.6 Luna gives you 2x more input for the same budget.

$10 of output

Claude Sonnet 5

1,000,000 tokens

GPT-5.6 Luna

1,666,667 tokens

GPT-5.6 Luna gives you 1.7x more output for the same budget.

Individual model pages

Other comparisons