Minimax M3.1 Flash API Pricing

These are the tracked rates, not a live quote. Hosted-provider choice, region, long-context tiers, caching, batch discounts, and temporary promotions can change the actual bill. Open-weight availability does not mean hosted inference is free. Workload examples assume the listed standard input and output rates, with no cache hits or discounts.

Publisher-reported pricing notes

• Standard API prices are $0.15 input, $0.60 output and $0.015 cached input per million tokens.

Official release and model references

These references document the model and its release; not every reference is a pricing table. Confirm the applicable endpoint and billing tier with your inference provider before purchase.

• www.minimax.io/blog/minimax-m31f
• platform.minimax.io/docs/guides/models-intro

Computed straight from the list prices above — token counts are illustrative workload sizes, not measurements of Minimax M3.1 Flash.

In AI IQ's scoring, Minimax M3.1 Flash's list price is adjusted by a token-usage multiplier of 1.863 (measured from real benchmark runs), giving an effective cost of $1.40 per 1M input + output tokens. That places it #47 of 155 models on the effective-cost ranking (lower is cheaper). Some models spend far more tokens than others on the same task, so effective cost compares what a unit of work really costs. Method details are on the methodology page; see all models on the cost charts and the falling cost of intelligence over time.

Models with a lower effective cost that score within a few IQ points of Minimax M3.1 Flash (IQ 123), or better.