Mistral Large vs GPT-6 Luna.
GPT-6 Luna is 3.6x cheaper.

For a chatbot doing 100K requests a month with 1,000 input and 500 output tokens each: $35.00 vs $125.00.

Mistral

Mistral Large

Input / 1M$0.50
Cached / 1M—
Output / 1M$1.50
Context—
Chatbot at 100K req/mo$125.00

Source · Oct 20, 2026

OpenAI

GPT-6 Luna

Input / 1M$0.10
Cached / 1M$0.01
Output / 1M$0.50
Context—
Chatbot at 100K req/mo$35.00

Source · Oct 20, 2026

Price isn't everything: check quality on your own prompts. GPT-6 Luna wins on list price for this workload, but output-heavy jobs (long answers, agents, reasoning) shift the math toward whichever model has the lower output price, which here is GPT-6 Luna.

Run your own workload