MiniMax M3.1 Flash vs DeepSeek V4.1 Flash
There is no quality verdict yet: the AIGROW small-business benchmark has not run MiniMax M3.1 Flash. On price, MiniMax M3.1 Flash costs less: $0.15 in and $0.60 out per million tokens, against $0.30 in and $1.20 out for DeepSeek V4.1 Flash.
AIGROW credit covers Claude Opus 5.5, Claude Fable 5.2, Claude Fable 5.1, GPT-6 Astra, Claude Sonnet 5.5, GPT-6.1 Sol, GPT-6.1 Terra, Grok 4.7 and Gemini 4 Argon. See API credit
$25 a month brings $110 of API credit and cancels any time; $25 once buys $100. US dollars, standard rate, shortest context band. Price only: the benchmark has not run both.
- MiniMax M3.1 Flash
- $0.69
- DeepSeek V4.1 Flash
- $1.38
- MiniMax M3.1 Flash, per M tokens
- $0.15 / $0.60
- DeepSeek V4.1 Flash, per M tokens
- $0.30 / $1.20
3,000 tokens in and 400 out each, at list price.
Open-weight budget APIs with 1M context, where MiniMax's list price matches DeepSeek's off-peak rate. 1,000 support replies cost $1.38 on DeepSeek V4.1 Flash and $0.69 on MiniMax M3.1 Flash, so DeepSeek V4.1 Flash costs twice as much. MiniMax M3.1 Flash was released on 19 Oct 2026, DeepSeek V4.1 Flash was released on 10 Sep 2026.
What each one costs
The API price per million tokens and the cheapest app plan with each model, from the makers’ own pages. Each name opens that model’s full price page.
- MiniMax M3.1 Flash
- On the MiniMax API, MiniMax M3.1 Flash costs $0.15 per million input tokens and $0.60 per million output tokens. MiniMax Code has a free plan and paid plans from $22/mo (Go); the plan list does not name MiniMax M3.1 Flash. Plan prices read 20 October 2026.
- DeepSeek V4.1 Flash
- On the DeepSeek API, DeepSeek V4.1 Flash costs $0.30 per million input tokens and $1.20 per million output tokens.
Side by side
Each maker’s published rate for its standard tier. Cached input is what a repeated prompt prefix costs once the provider has stored it.
| Fact | MiniMax M3.1 Flash | DeepSeek V4.1 Flash |
|---|---|---|
| Maker | MiniMax | DeepSeek |
| Tier | Small and fast | Small and fast |
| Input, per M tokens | $0.15 | $0.30 |
| Output, per M tokens | $0.60 | $1.20 |
| Cached input | $0.015 | $0.006 |
| Context window | 1M | 1M |
| Released | 19 Oct 2026 | 10 Sep 2026 |
| Weights | Open weights | Open weights |
What a job costs on each
1,000 runs of each job at the two list prices. The gap moves from job to job because the models price input, output and cached context differently.
| Job | MiniMax M3.1 Flash | DeepSeek V4.1 Flash | Cheaper |
|---|---|---|---|
| Support reply3,000 in, 400 out. | $0.69 | $1.38 | MiniMax M3.1 Flash, 50% less |
| Document summary25,000 in, 1,000 out. | $4.35 | $8.70 | MiniMax M3.1 Flash, 50% less |
| Agent task80,000 in (70,000 cached), 3,000 out. | $4.35 | $7.02 | MiniMax M3.1 Flash, 38% less |
The token counts are ours, chosen to look like real work; the prices are the makers’. A model with no published cache price bills the agent task’s repeated context at its full input rate.
The small print
What each base rate leaves out, from the makers’ own pages: surcharges, discounts, promotions and cache pricing.
- MiniMax M3.1 Flash
- MiniMax pitches it as an efficient open-weight model for everyday work, next to MiniMax M3, which remains available. Release date is the MiniMax launch post date. MiniMax’s pricing page
- DeepSeek V4.1 Flash
- Peak-hour rate, recorded as the list price. Off-peak is half: $0.15 / $0.60, cache hit $0.003. API name deepseek-flash, which serves DeepSeek-V4.1-Flash-1017 since 2026-10-17 at unchanged prices. Max output 384K. DeepSeek’s pricing page
Other comparisons
Every head to head on the list that involves MiniMax M3.1 Flash or DeepSeek V4.1 Flash.
Compare MiniMax M3.1 Flash and DeepSeek V4.1 Flash with 52 other models
The price list sets every model’s input and output price side by side, with what a support reply, a document summary and an agent task cost on each.
Prices checked 12 November 2026