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GPT-5 nano vs Mistral Small 3.2

Compare OpenAI and Mistral AI AI models

OpenAI
GPT-5 nano
vs
Mistral AI
Mistral Small 3.2

Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

GPT-5 nano

Per Request:$0.000250
Daily:$0.025
Monthly:$0.75
Yearly:$9.125

Mistral Small 3.2

Per Request:$0.000150
Daily:$0.015
Monthly:$0.45
Yearly:$5.475

Cost Differences

$0.000100
Per Request
$0.01
Daily
$0.30
Monthly
$3.65
Yearly

Mistral Small 3.2 costs less than GPT-5 nano

Feature Comparison

FeatureGPT-5 nanoMistral Small 3.2
ProviderOpenAIMistral AI
Input Price$0.05/1M tokens$0.06/1M tokens
Output Price$0.40/1M tokens$0.18/1M tokens
Context Window128,000 tokens128,000 tokens
Max Output8,192 tokens8,192 tokens
Categoryefficientefficient
Capabilities
text
textcode
Release Date8/7/202512/2/2025

GPT-5 nano vs Mistral Small 3.2: Which Should You Choose?

Choosing between GPT-5 nano and Mistral Small 3.2 depends on your priorities: cost efficiency, context length, or raw capability. Mistral Small 3.2 is the more affordable option at $0.06/1M input tokens.

These models come from different providers — OpenAI and Mistral AI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with OpenAI, switching to Mistral AIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.

Both models are in the efficient category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: Mistral Small 3.2 would save you roughly $30.00/month compared to GPT-5 nano. For startups and indie developers, that difference can be significant.

Output costs matter too. GPT-5 nano charges $0.40/1M output tokens vs $0.18 for Mistral Small 3.2. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Mistral Small 3.2 has the edge here at $0.18/1M output tokens.

Best Use Cases

Choose GPT-5 nano when:

  • • Budget is a primary concern
  • • You're already using OpenAI's API ecosystem
  • • You're running high-volume, latency-sensitive workloads

Choose Mistral Small 3.2 when:

  • • You need more capabilities (code)
  • • You're already using Mistral AI's API ecosystem
  • • You're running high-volume, latency-sensitive workloads

Try Different Scenarios

Use the calculator below to see how costs change with different usage patterns

GPT-5 nano (OpenAI)

Mistral Small 3.2 (Mistral AI)

Start using GPT-5 nano today

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Start using Mistral Small 3.2 today

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Frequently Asked Questions

Which is cheaper, GPT-5 nano or Mistral Small 3.2?
Mistral Small 3.2 is cheaper for input tokens at $0.06 per million tokens vs $0.05 for GPT-5 nano.
What is the context window difference between GPT-5 nano and Mistral Small 3.2?
GPT-5 nano supports 128,000 tokens while Mistral Small 3.2 supports 128,000 tokens — a difference of 0 tokens in favor of GPT-5 nano.
Which model is better for AI Chatbot?
Both models support text. For ai chatbot, Mistral Small 3.2 is the lower-cost option, while GPT-5 nano offers a larger context window (128,000 vs 128,000 tokens). Choose Mistral Small 3.2 for budget sensitivity or GPT-5 nano for longer context tasks.
Which model has better overall pricing for heavy usage?
At 100 requests/day with 1,000 input and 500 output tokens each, GPT-5 nano costs about $0.75/month and Mistral Small 3.2 costs about $0.45/month. Overall, Mistral Small 3.2 has lower combined input + output rates ($0.06 in, $0.18 out) vs GPT-5 nano.

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