Atlas / Models / Mistral AI / Mistral: Mistral Small 3.1 24B

Mistral: Mistral Small 3.1 24B✓ Catalog verified

mistralai/mistral-small-3.1-24b-instruct

Mistral Small 3.1 24B Instruct is an upgraded variant of Mistral Small 3 (2501), featuring 24 billion parameters with advanced multimodal capabilities. It provides state-of-the-art performance in text-based reasoning and...

Input price
$0.35 /1M
Output price
$0.56 /1M
Context
128K
Modalities
textimage
Released
Mar 17, 2025
Tool calling
Atlas signal
81/100
01

Overview

Mistral Small 3.1 24B Instruct is an upgraded variant of Mistral Small 3 (2501), featuring 24 billion parameters with advanced multimodal capabilities. It provides state-of-the-art performance in text-based reasoning and...

Access: available through the official Mistral AI API. Context window: 128K.

Pricing and metadata from the ModelsAtlas catalog.Last refreshed Sep 19, 2026
02

Specifications

API identifiermistralai/mistral-small-3.1-24b-instruct
ProviderMistral AI
Model typeMultimodal LLM
Context window128K catalog
Input modalitiestext · image
Output modalitiestext
ReleasedMar 17, 2025
TokenizerMistral
ModeratedNo
Architecture modalitytext+image->text
Supported parameters
frequency_penaltylogit_biaslogprobsmax_tokensmin_ppresence_penaltyrepetition_penaltyseedstoptemperaturetop_ktop_logprobstop_p
Source: provider documentation + catalog feedMethodology →

API defaults

Default parameters
{
  "temperature": 0.3
}
03

Pricing

Live pricing components for mistralai/mistral-small-3.1-24b-instruct as published in the catalog.

$0.35
Input /1M
$0.56
Output /1M
Per request
Per image
Pricing componentRaw unit priceNormalizedUnit
Prompt tokens$3.51e-7$0.35 / 1MPer input token
Completion tokens$5.55e-7$0.56 / 1MPer output token
Request feeN/AN/APer request
Image feeN/AN/APer image unit
Web search feeN/AN/APer search request
Source: catalog pricing feedCompare all pricing →Cheapest models →
04

Cost calculator

Estimate monthly spend from your own token volumes.

Scale / Volume

Estimated Total Cost

$0.29Calculated from current list pricing in the ModelsAtlas catalog.
05

Capabilities

CapabilityStatusWhat it means
Visual Understanding✓ SupportedImage and document analysis support
Audio ProcessingNot advertisedSpeech and voice aligned flows
Tool CallingNot advertisedSupports tools / function calling
Self-Hosting✓ SupportedDeploy outside managed APIs
Derived from catalog capability tags and supported parameters
06

Capability signals

Directional signals derived from model metadata and capability tags — not official benchmark submissions.

Mistral: Mistral Small 3.1 24B
MMLU Signal (Reasoning)
85signal
Coding Signal (HumanEval proxy)
79signal
Math Signal (GSM8K proxy)
79signal
Science Signal (GPQA proxy)
79signal
Estimated from metadata — not an official benchmark runAll benchmarks →Methodology →
07

Quick start

Call Mistral: Mistral Small 3.1 24B through an OpenAI-compatible client.

from openai import OpenAI

client = OpenAI(
    base_url="https://openrouter.ai/api/v1",
    api_key="YOUR_API_KEY"
)

response = client.chat.completions.create(
    model="mistralai/mistral-small-3.1-24b-instruct",
    messages=[{"role": "user", "content": "Explain quantum physics."}]
)

print(response.choices[0].message.content)
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Alternatives

Closest models by context window from a different provider.

09

Sources & attribution

Pricing and metadata are maintained in the ModelsAtlas catalog.

Capability bars use metadata tags — directional estimates onlyHow we source and verify data →
10

Frequently asked questions

How much does Mistral: Mistral Small 3.1 24B cost?

$0.35 per 1M input tokens and $0.56 per 1M output tokens on the official Mistral AI API.

What is the context window of Mistral: Mistral Small 3.1 24B?

Mistral: Mistral Small 3.1 24B supports up to 128K tokens of context.

Does Mistral: Mistral Small 3.1 24B support tool / function calling?

Mistral: Mistral Small 3.1 24B does not advertise first-class tool/function calling. Check vendor docs for the latest capabilities.

How do I access Mistral: Mistral Small 3.1 24B?

Use the official Mistral AI API with the model id `mistralai/mistral-small-3.1-24b-instruct`. See the Quick start section above for code examples.