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GPT-4o vs Mistral Small 3

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 GPT-4o and Mistral Small 3.

OpenAI

GPT-4o

GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as...

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Mistral

Mistral Small 3

Mistral Small 3 is a 24B-parameter language model optimized for low-latency performance across common AI tasks. Released under the Apache 2.0 license, it features both pre-trained and instruction-tuned versions designed...

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Technical Specifications

SpecificationGPT-4oMistral Small 3
ProviderOpenAIMistral
Context Window128,000 tokens32,768 tokens
Agent Suitability90/10084/100
Time to First Token (TTFT)280 ms120 ms
Deployment Modelmanaged apimanaged api
Production Stabilitystablestable
API AvailableYesYes
Released Date2024-05-132025-01-30

API Pricing Comparison

Input Price per Million Tokens

GPT-4o

$2.50

Mistral Small 3

$0.07

Output Price per Million Tokens

GPT-4o

$10.00

Mistral Small 3

$0.20

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
8870.0%vs8120.0%
GPT-4o
Mistral Small 3
HumanEvalPython coding & logic synthesis
9020.0%vs8300.0%
GPT-4o
Mistral Small 3
MATHComplex mathematical problem solving
7660.0%vs6800.0%
GPT-4o
Mistral Small 3
GPQAGraduate-level expert reasoning
5360.0%vs4500.0%
GPT-4o
Mistral Small 3
HellaSwagCommonsense reasoning and inference
8870.0%vs8500.0%
GPT-4o
Mistral Small 3
MT-BenchMulti-turn conversation flow quality
930.0%vs830.0%
GPT-4o
Mistral Small 3

GPT-4o Quirks & Gotchas

  • โ–ธStrong multimodal performance โ€” best vision+tool calling combo
  • โ–ธLegacy model โ€” migrate to GPT-5 for latest improvements

Mistral Small 3 Quirks & Gotchas

  • โ–ธFastest TTFT at lowest cost โ€” ideal for high-volume classification
  • โ–ธNot designed for complex reasoning โ€” route multi-step tasks to Mistral Large 3