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GPT-5 Image 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-5 Image and Mistral Small 3.

OpenAI

GPT-5 Image

[GPT-5](https://openrouter.ai/openai/gpt-5) Image combines OpenAI's GPT-5 model with state-of-the-art image generation capabilities. It offers major improvements in reasoning, code quality, and user experience while incorporating GPT Image 1's superior instruction following,...

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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-5 ImageMistral Small 3
ProviderOpenAIMistral
Context Window400,000 tokens32,768 tokens
Agent SuitabilityN/A84/100
Time to First Token (TTFT)N/A120 ms
Deployment Modelmanaged apimanaged api
Production Stabilitystablestable
API AvailableYesYes
Released Date2025-10-142025-01-30

API Pricing Comparison

Input Price per Million Tokens

GPT-5 Image

$10.00

Mistral Small 3

$0.07

Output Price per Million Tokens

GPT-5 Image

$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
N/Avs8120.0%
GPT-5 Image
Mistral Small 3
HumanEvalPython coding & logic synthesis
N/Avs8300.0%
GPT-5 Image
Mistral Small 3
MATHComplex mathematical problem solving
N/Avs6800.0%
GPT-5 Image
Mistral Small 3
GPQAGraduate-level expert reasoning
N/Avs4500.0%
GPT-5 Image
Mistral Small 3
HellaSwagCommonsense reasoning and inference
N/Avs8500.0%
GPT-5 Image
Mistral Small 3
MT-BenchMulti-turn conversation flow quality
N/Avs830.0%
GPT-5 Image
Mistral Small 3

GPT-5 Image Quirks & Gotchas

No developer gotchas reported.

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