Mistral Small 4 API Pricing
Mistral · context window 262K · prices updated 2026-09-15
Where Mistral Small 4 sits on price
At $0.6 per million output tokens, Mistral Small 4 is a mid tier model — 3.5× cheaper than the median output price of $2.08, which puts it cheaper than 78% and pricier than 22% of the models we track. It sits 13th cheapest of the 25 Mistral models we track. Output costs 4.0× input, the usual spread — trim both, starting with the answer length.
Cached input is 90% cheaper. On an input-heavy workload you need roughly a 28% cache-hit rate to take 25% off the input line — reachable for chatbots and agents that resend the same system prompt and history.
What real workloads cost on Mistral Small 4
These three workloads are the ones teams actually run on a mid-priced model — a $0.6/1M model is not bought for the same job as one ten times the price.
| Workload | Per request | Per month |
|---|---|---|
| Support chatbot — 500 conversations/day (5K in / 1.4K out) Conversation history re-sent each turn — the classic prompt-caching win. | $0.0016 | $23.85 |
| Document pipeline — 10K docs/day (3K in / 500 out) Batch-friendly: no user waiting, so a ~50% batch discount usually applies. | $0.0008 | $225 |
| Small app — 1K requests/day (500 in / 150 out) The baseline most side projects actually run at. | $0.0002 | $4.95 |
Model your exact traffic in the API cost calculator — it preloads Mistral Small 4 with caching and batch options.
Mistral Small 4 price history
Mistral Small 4's price has not moved since we began tracking it on Aug 2, 2026 — 44 days of stability in a market where 78 of the 334 models we track have repriced over the same period, including 7 of Mistral's own 25 models.
Change-points from our daily price snapshots (tracking since Aug 2, 2026; intraday moves between snapshots are not captured).
Mistral Small 4 vs Qwen3 VL 30B A3B Instruct
The closest-priced alternative from another vendor is Qwen3 VL 30B A3B Instruct (Alibaba (Qwen)) — priced within a rounding error on output, with identical input pricing. When two models land this close on price, the decision is quality on your own workload, not the price sheet: run 50 real requests through both and compare.
See Qwen3 VL 30B A3B Instruct pricing →Cheaper alternatives
More Mistral models
Frequently asked questions
› How much does the Mistral Small 4 API cost?
Mistral Small 4 costs $0.15 per million input tokens and $0.6 per million output tokens, with cached input at $0.015 per million (90% cheaper). That works out to roughly 1,666,667 output tokens per dollar.
› What does the support chatbot workload cost on Mistral Small 4?
Support chatbot — 500 conversations/day (5K in / 1.4K out) costs about $0.0016 per request and $23.85 per month on Mistral Small 4. Conversation history re-sent each turn — the classic prompt-caching win.
› What does it cost to fill Mistral Small 4's 262K context window?
Sending 262K of input in a single request costs $0.0393 at $0.15 per million tokens — before any output. With prompt caching that same fill drops to about $0.0039 on repeat requests. This is why large context windows are cheap to advertise and expensive to actually use.
› Is Mistral Small 4 worth the price?
Mistral Small 4 sits in the middle of the market (13 of 25 by price within Mistral). The honest test is a routing experiment: send the same 200 real requests to this model and to a tier below, and compare failure rate against the price gap — most teams find a majority of traffic never needed the pricier model.