Migrating from magistral-small-2506 to magistral-small-2509

What changes when you move from magistral-small-2506 to magistral-small-2509: input price 0%, output price 0%, context window 40,000 → 128,000 tokens.

From: magistral-small-2506
Status: Retired
Shutdown: Nov 30, 2025
Time left: —

To: magistral-small-2509
Status: Retired
Shutdown: Jul 31, 2026
Time left: —

magistral-small-2509 is itself retired. Its replacement is mistral-small-2603.

Prices

USD per 1M tokens, standard tier

Type	magistral-small-2506	magistral-small-2509	Change
Input	$0.50first seen October 5, 2026 · source	$0.50first seen October 5, 2026 · source	0%
Output	$1.50first seen October 5, 2026 · source	$1.50first seen October 5, 2026 · source	0%

At 1M input and 250K output tokens a month: $0.875 on magistral-small-2506, $0.875 on magistral-small-2509 (0%).

Other tiers, prompt-size bands and modalities are on each model's page.

Limits

Tokens

Limit	magistral-small-2506	magistral-small-2509	Change
Context window	40,000 tokensin place when tracking began (October 6, 2026) · source	128,000 tokensin place when tracking began (October 6, 2026) · source	+220%
Max output tokens	Not published	Not published	—

Benchmarks

Same benchmark, source and setting on both sides

Benchmark	magistral-small-2506	magistral-small-2509	Change
GPQA DiamondEpoch AI.	56.1%	47.6%	−8.5 pts
OTIS Mock AIME 2024-2025Epoch AI.	30.0%	28.1%	−1.9 pts

A score from one source is never compared with another source's, and company-reported scores are compared only within the same company; settings named where they differ. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.

Features and parameters

Compare models

Same on both

Function calling: supported on both.magistral-small-2506: in place when tracking began (October 6, 2026) · source · magistral-small-2509: in place when tracking began (October 6, 2026) · source
Batch API: supported on both.magistral-small-2506: in place when tracking began (October 6, 2026) · source · magistral-small-2509: in place when tracking began (October 6, 2026) · source
PDF input: supported on both.magistral-small-2506: in place when tracking began (October 6, 2026) · source · magistral-small-2509: in place when tracking began (October 6, 2026) · source
Reasoning / thinking: supported on both.magistral-small-2506: in place when tracking began (October 6, 2026) · source · magistral-small-2509: in place when tracking began (October 6, 2026) · source

Not published for magistral-small-2506: Structured outputs, Prompt caching, Image input, Fine-tuning, Built-in web search, temperature parameter, top_p parameter, logprobs, Max output tokens.

Not published for magistral-small-2509: Structured outputs, Prompt caching, Fine-tuning, Built-in web search, temperature parameter, top_p parameter, logprobs, Max output tokens.

Aliases

All aliases

No aliases point at magistral-small-2506.

Aliases pointing at magistral-small-2509: magistral-small-latest (in place when tracking began (October 6, 2026) · source)

On cloud platforms

All platform dates

Model	Platform	Platform ID	Shutdown	Time left
magistral-small-2509	Amazon Bedrock	mistral.magistral-small-2509	none announcedActive

Read daily from each platform's own pages. The status above uses each company's own date. Time left counts to 00:00 UTC on the shutdown date, which is the evening before in ET.

Checklist

Change the model string from magistral-small-2506 to magistral-small-2509.

Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: magistral-small-2506, magistral-small-2509.