MiniMax M3.1 Flash API Pricing
MiniMax M3.1 Flash is MiniMax's ultra-efficient model for agents, coding and computer use, released on October 19, 2026. It costs $0.15/M input, $0.015/M cached input and $0.60/M output, one flat card across its 1M-token window, where MiniMax M3 doubles its rates above 512K and sells a Priority tier on top. It takes text, images and video, thinks before it answers, and with its launch MiniMax took the whole M2.x family off its price list.
Run the numbers.
Calculator pre-loaded with MiniMax M3.1 Flash's flat rates. Thinking is on by default at the highest effort, and thinking tokens bill as output, so a lower effort setting is the main lever on the output share.
Real-world presets.
Repo repair task
Desktop workflow step
Read a whole repository
Analyst memo draft
Counts use a chars-per-token calibration measured on the vendor's own published tokenizer (MiniMaxAI/MiniMax-M2.1, 2026-06-10). English prose is typically within a few percent; code and non-Latin scripts tokenize heavier. For billing-exact counts use the vendor's count-tokens API.
| Model | Input /M | Output /M | Effective blended | Context | Best for |
|---|---|---|---|---|---|
| MiniMax M3.1 Flash Current | $0.15 cache $0.015 | $0.60 | $0.0842 agentic 92/8 | 1M | Cheap 1M-context agents, coding and computer use |
| MiniMax M3 | $0.30 cache $0.06 | $1.20 | $0.191 +2.3× | 1M | MiniMax's frontier model, with a Priority tier |
| MiniMax M2.7 | $0.30 cache $0.06 | $1.20 | $0.191 deprecated · +2.3× | 205K | The previous generation, off the price list |
| DeepSeek V4.1 Flash | $0.30 cache $0.006 | $1.20 | $0.15 +78% | 1M | Cheap 1M-context agent loops with images |
| GLM-5.3-Flash | $0.15 cache $0.03 | $0.50 | $0.0875 +4% | 1M | Z.ai's multimodal flash tier |
| MiMo-V2.6-Flash | $0.14 cache $0.0028 | $0.28 | $0.0477 −43% | 1M | Omni-modal input with a Batch API |
| Mercury 3 | $0.20 cache $0.02 | $0.70 | $0.104 +24% · promo | 1M | Diffusion LLM sold on speed |
| Gemini 3.8 Flash | $0.75 cache $0.075 | $3.75 | $0.481 +5.7× · promo | 1M | The Western flash tier |
Frequently asked.
What MiniMax M3.1 Flash costs, how it differs from MiniMax M3, and what its launch did to the M2.x models.
Q · 01 How much does MiniMax M3.1 Flash cost? +
$0.15/M input, $0.015/M cached input and $0.60/M output, the same on MiniMax's pricing page and in the launch post. That is $0.08/M on our 92/8 agentic blend with 82% cache hits. MiniMax prints one row for it: no long-context step and no Priority tier.Q · 02 How does it compare with MiniMax M3? +
$0.30 input and $1.20 output up to 512K tokens, a higher rate above 512K and a Priority tier on top; M3.1 Flash has one flat rate across its whole 1M window. Both take text, image and video input. MiniMax keeps M3 available and says a Pro model will follow.Q · 03 What happened to MiniMax M2.7 and the rest of M2? +
$0.30 input and $1.20 output.Q · 04 Does thinking cost extra? +
effort setting runs from low to max; when you omit it, M3.1 Flash uses max. Higher effort thinks longer and produces more output tokens, so on short tasks it is worth setting effort explicitly.