Migrating off mistral-medium-2505 — retirement date and replacement
Source last checked: 2026-09-28.
Mistral is retiring mistral-medium-2505 on 2026-08-31. The provider’s documented replacement is Mistral Medium 3.5. This page is built from Mistral’s official deprecation notice and is rechecked weekly; the source link is below.
Past scheduled retirement. The published shutdown date has passed; this is a historical notice, not a live availability check.
When is mistral-medium-2505 being deprecated?
| Model | Provider | Retires | Replacement |
|---|---|---|---|
| mistral-medium-2505 | Mistral | 2026-08-31 | Mistral Medium 3.5 |
Source: Mistral deprecation notice · announced 2026-05-22
Test before switching
- Check the replacement's supported API endpoints and request parameters.
- Test your prompts, structured output, streaming and tool calls on staging.
- Compare quality, latency, pricing and rate limits on your workload.
- Keep a rollback path while the old model remains available.
Download retirement dates for your models.
What should I migrate mistral-medium-2505 to?
Mistral documents Mistral Medium 3.5 as the successor. This is not a compatibility guarantee: request parameters, API endpoints, pricing, tool calls and output behaviour may differ. Check the linked provider documentation and run your own workload before switching.
Measured latency of the Mistral API host
| Region | p50 TTFB | p95 | Uptime | Probes |
|---|---|---|---|---|
| Asia (Tokyo) | 318 ms | 389 ms | 100% | 288 |
| Europe (Germany) | 100 ms | 204 ms | 100% | 288 |
| South America (São Paulo) | 240 ms | 312 ms | 100% | 287 |
| US (Central) | 187 ms | 257 ms | 100% | 287 |
Edge latency to the provider’s API host over the last 24 hours, measured from 4 regions. This measures the endpoint, not the model: swapping models on the same host is not an inference benchmark or a promise about the replacement model. Compare edge latency →
What else retires on 2026-08-31?
| Model | Provider | Retires | Replacement |
|---|---|---|---|
| mistral-medium-2508 | Mistral | 2026-08-31 | Mistral Medium 3.5 |
Same shutdown date. If you call more than one of these, they are one migration, not several.
Other Mistral models being retired
| Model | Provider | Retires | Replacement |
|---|---|---|---|
| labs-leanstral-2603 | Mistral | 2026-06-30 | Leanstral 1.5 |
| mistral-small-2506 | Mistral | 2026-07-31 | Mistral Small 4 |
| voxtral-mini-2507 | Mistral | 2026-05-31 | Voxtral Mini Transcribe 2 |
| devstral-2512 | Mistral | 2026-07-31 | Mistral Medium 3.5 |
| magistral-medium-2507 | Mistral | 2025-11-30 | Mistral Medium 3.5 |
| labs-mistral-small-creative | Mistral | 2026-04-30 | Ministral 3 8B |
| labs-devstral-small-2512 | Mistral | 2026-03-31 | Mistral Medium 3.5 |
| magistral-medium-2509 | Mistral | 2026-07-31 | Mistral Medium 3.5 |
How is this calendar maintained?
Entries are pulled from provider documentation by an automated weekly job and every one carries a link to its source. Nothing is inferred from blog posts or social media. When a provider changes a date, the change appears here after the next run and is visible in the changelog. The full calendar across all providers is on the deprecations page, and this provider’s own list is at Mistral deprecations.