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MiniMax M3 vs GPT-5.5

For a typical chat reply (2,000 tokens in, 400 out), GPT-5.5 costs 20× as much as MiniMax M3: $22.00 against $1.08 per 1,000 requests at list price on 2026-09-28.

MiniMax M3GPT-5.5
Input, per 1M tokens$0.30$5.00
Output, per 1M tokens$1.20$30.00
Context window1.05M1.05M
Classification or routing (600 tokens in, 10 out), per 1,000$0.192$3.30
Chat reply (2,000 in, 400 out), per 1,000$1.08$22.00
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$3.00$55.00
Confidence signalyesno
Tool callingyesyes
BANKING77, correct of 400316not measured

Which one should carry your traffic?

If MiniMax M3 answers your requests as well as GPT-5.5, moving that traffic saves 95% on chat-shaped requests. Averages cannot tell you whether it does for your requests. MiniMax M3 exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to GPT-5.5.

MiniMax M3 profile · GPT-5.5 profile · Measure it on your traffic