Mistral Large 4 vs Mistral Medium 3.5
There is no quality verdict yet: the AIGROW small-business benchmark has not run Mistral Large 4. On price, Mistral Large 4 costs less: $1.36 in and $4.18 out per million tokens, against $1.50 in and $7.50 out for Mistral Medium 3.5.
Mistral Large 4 is still a preview, so its price can change. US dollars, standard rate, shortest context band. Price only: the benchmark has not run both.
- Mistral Large 4
- $5.75
- Mistral Medium 3.5
- $7.50
- Mistral Large 4, per M tokens
- $1.36 / $4.18
- Mistral Medium 3.5, per M tokens
- $1.50 / $7.50
3,000 tokens in and 400 out each, at list price.
Mistral's new flagship lists below its Medium model on both input and output. 1,000 support replies cost $7.50 on Mistral Medium 3.5 and $5.75 on Mistral Large 4, so Mistral Medium 3.5 costs 30% more. Mistral Large 4 was released on 6 Oct 2026, Mistral Medium 3.5 was released on 28 Apr 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.
- Mistral Large 4
- On the Mistral API, Mistral Large 4 costs $1.36 per million input tokens and $4.18 per million output tokens. Vibe has a free plan and paid plans from $14.99/mo (Pro); the plan list does not name Mistral Large 4. Plan prices read 20 October 2026.
- Mistral Medium 3.5
- On the Mistral API, Mistral Medium 3.5 costs $1.50 per million input tokens and $7.50 per million output tokens. Vibe has a free plan and paid plans from $14.99/mo (Pro); the plan list does not name Mistral Medium 3.5. Plan prices read 20 October 2026.
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 | Mistral Large 4 | Mistral Medium 3.5 |
|---|---|---|
| Maker | Mistral | Mistral |
| Tier | Flagships | Workhorses |
| Input, per M tokens | $1.36 | $1.50 |
| Output, per M tokens | $4.18 | $7.50 |
| Cached input | $0.14 | $0.15 |
| Context window | 1M | 256K |
| Released | 6 Oct 2026 | 28 Apr 2026 |
| Weights | Closed 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 | Mistral Large 4 | Mistral Medium 3.5 | Cheaper |
|---|---|---|---|
| Support reply3,000 in, 400 out. | $5.75 | $7.50 | Mistral Large 4, 23% less |
| Document summary25,000 in, 1,000 out. | $38.18 | $45.00 | Mistral Large 4, 15% less |
| Agent task80,000 in (70,000 cached), 3,000 out. | $35.94 | $48.00 | Mistral Large 4, 25% 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.
- Mistral Large 4
- Mistral Large 4 is in Public Preview. The original price is recorded: Mistral shows a 50% launch discount ($0.68 / $2.09, cached $0.07) for two weeks from 6 October 2026. Mistral calls it open-weight, but the weights were not yet published when read ("Open weights are coming soon"). 1.05T total, 52B active parameters. Batch 50% off. Mistral’s pricing page
- Mistral Medium 3.5
- Mistral calls it "frontier-class", but Mistral Large 4 is now its flagship, so it is tiered here as the workhorse. Cache hit $0.15. Batch 50% off. Open weights under a modified MIT license. Mistral’s pricing page
Other comparisons
Every head to head on the list that involves Mistral Large 4 or Mistral Medium 3.5.
Compare Mistral Large 4 and Mistral Medium 3.5 with 44 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 15 October 2026