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Gemini 3.1 Flash vs Mistral Small 3.1 24B

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Gemini 3.1 Flash and Mistral Small 3.1 24B.

Google

Gemini 3.1 Flash

Gemini 3.1 Flash is Google's high-speed, cost-efficient multimodal model in the 3.1 generation, purpose-built for high-volume content synthesis, classification, and intelligent routing at scale. Featuring a 1-million-token context window, it can process large batches of documents, customer data, or multimedia content in a single inference pass, dramatically reducing pipeline complexity. At just $0.25/MTok for input, it is one of the most affordable routes to Google-caliber multimodal AI, making it an ideal backbone for production pipelines, data enrichment workflows, and high-frequency API integrations.

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Mistral

Mistral Small 3.1 24B

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...

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Technical Specifications

SpecificationGemini 3.1 FlashMistral Small 3.1 24B
ProviderGoogleMistral
Context Window1,000,000 tokens128,000 tokens
Agent Suitability86/100N/A
Time to First Token (TTFT)150 msN/A
Deployment Modelmanaged apiself hostable
Production Stabilitystablestable
API AvailableYesYes
Released Date2026-04-202025-03-17

API Pricing Comparison

Input Price per Million Tokens

Gemini 3.1 Flash

$0.25

Mistral Small 3.1 24B

$0.35

Output Price per Million Tokens

Gemini 3.1 Flash

$1.50

Mistral Small 3.1 24B

$0.56

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

MMLUGeneral knowledge & multi-task understanding
8680.0%vsN/A
Gemini 3.1 Flash
Mistral Small 3.1 24B
HumanEvalPython coding & logic synthesis
8850.0%vsN/A
Gemini 3.1 Flash
Mistral Small 3.1 24B
MATHComplex mathematical problem solving
7820.0%vsN/A
Gemini 3.1 Flash
Mistral Small 3.1 24B
GPQAGraduate-level expert reasoning
6050.0%vsN/A
Gemini 3.1 Flash
Mistral Small 3.1 24B
HellaSwagCommonsense reasoning and inference
9520.0%vsN/A
Gemini 3.1 Flash
Mistral Small 3.1 24B
MT-BenchMulti-turn conversation flow quality
900.0%vsN/A
Gemini 3.1 Flash
Mistral Small 3.1 24B

Gemini 3.1 Flash Quirks & Gotchas

  • โ–ธMost cost-effective Google model โ€” ideal for high-volume pipelines
  • โ–ธContext caching available via Vertex AI for repeated document processing

Mistral Small 3.1 24B Quirks & Gotchas

No developer gotchas reported.