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Mistral Medium 3.1 vs o1 Pro

Compare Mistral AI and OpenAI AI models

Mistral AI
Mistral Medium 3.1
vs
OpenAI
o1 Pro

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

Mistral Medium 3.1

Per Request:$0.001400
Daily:$0.14
Monthly:$4.20
Yearly:$51.10

o1 Pro

Per Request:$0.45
Daily:$45.00
Monthly:$1,350.00
Yearly:$16,425.00

Cost Differences

+$0.4486
Per Request
+$44.86
Daily
+$1,345.80
Monthly
+$16,373.90
Yearly

o1 Pro costs more than Mistral Medium 3.1

Feature Comparison

FeatureMistral Medium 3.1o1 Pro
ProviderMistral AIOpenAI
Input Price$0.40/1M tokens$150.00/1M tokens
Output Price$2.00/1M tokens$600.00/1M tokens
Context Window131,072 tokens200,000 tokens
Max Output16,384 tokens100,000 tokens
Categorybalancedflagship
Capabilities
textcodereasoning
textvisioncodereasoning
Release Date8/1/202512/17/2024

Mistral Medium 3.1 vs o1 Pro: Which Should You Choose?

Choosing between Mistral Medium 3.1 and o1 Pro depends on your priorities: cost efficiency, context length, or raw capability. Mistral Medium 3.1 is the more affordable option at $0.40/1M input tokens100% cheaper than o1 Pro. Meanwhile, o1 Pro offers a significantly larger context window at 200,000 tokens vs 131,072 for Mistral Medium 3.1.

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

These models target different tiers: Mistral Medium 3.1 is a balanced model while o1 Pro is flagship. This means they're optimized for different workloads. o1 Pro targets more demanding workloads, while Mistral Medium 3.1 provides a cost-effective option for everyday tasks.

Output costs matter too. Mistral Medium 3.1 charges $2.00/1M output tokens vs $600.00 for o1 Pro. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Mistral Medium 3.1 has the edge here at $2.00/1M output tokens.

Multimodal capabilities: o1 Pro supports vision (image inputs) while Mistral Medium 3.1 is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose Mistral Medium 3.1 when:

  • • Budget is a primary concern
  • • You're already using Mistral AI's API ecosystem

Choose o1 Pro when:

  • • You need a larger context window (200,000 tokens)
  • • You need more capabilities (vision)
  • • You need longer outputs (up to 100,000 tokens)
  • • You're already using OpenAI's API ecosystem

Try Different Scenarios

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

Mistral Medium 3.1 (Mistral AI)

o1 Pro (OpenAI)

Start using Mistral Medium 3.1 today

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Start using o1 Pro today

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Frequently Asked Questions

Which is cheaper, Mistral Medium 3.1 or o1 Pro?
Mistral Medium 3.1 is cheaper for input tokens at $0.40 per million tokens vs $150.00 for o1 Pro — that's 100% savings on input costs.
What is the context window difference between Mistral Medium 3.1 and o1 Pro?
Mistral Medium 3.1 supports 131,072 tokens while o1 Pro supports 200,000 tokens — a difference of 68,928 tokens in favor of o1 Pro.
Which model is better for AI Agent / Agentic Workflows?
Both models support text, code, reasoning. For ai agent / agentic workflows, Mistral Medium 3.1 is the lower-cost option, while o1 Pro offers a larger context window (200,000 vs 131,072 tokens). Choose Mistral Medium 3.1 for budget sensitivity or o1 Pro 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, Mistral Medium 3.1 costs about $4.20/month and o1 Pro costs about $1,350.00/month. Overall, Mistral Medium 3.1 has lower combined input + output rates ($0.40 in, $2.00 out) vs o1 Pro.

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