Mistral Medium 3.5 vs Grok 4.3 — Pricing Comparison 2026

Requests per Day

Days per Month

Mistral

Mistral Medium 3.5

$0.00

per month

Input cost

Output cost

Cost per request

Requests/month

xAI

Grok 4.3

$0.00

per month

Input cost

Output cost

Cost per request

Requests/month

Which Model for Which Use Case?

Cost-Sensitive Workloads

Grok 4.3 is 17-67% cheaper across the board. At $1.25/M input and $2.50/M output, it's significantly cheaper than Mistral Medium 3.5 for high-volume applications.

Best value: Grok 4.3 (17-67% cheaper)

Long-Context Processing

Grok 4.3's 1M context window is 7.8x larger than Mistral's 128K. For processing lengthy documents or maintaining large conversation histories, Grok gives you significantly more room.

Long context: Grok 4.3 (7.8x more context)

Real-Time Data

Grok 4.3 integrates with xAI's real-time data feeds, giving it access to current information that Mistral cannot match. For applications requiring up-to-the-minute data, Grok has a clear advantage.

Real-time data: Grok 4.3 | Code gen: Mistral Medium 3.5

Code Generation

Mistral Medium 3.5 is known for strong code generation capabilities. If your primary use case involves writing, reviewing, or explaining code, Mistral's specialized training gives it an edge.

Code generation: Mistral Medium 3.5 | Cost: Grok 4.3

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Frequently Asked Questions

Is Grok 4.3 cheaper than Mistral Medium 3.5?

Yes. Grok 4.3 costs $1.25/M input and $2.50/M output. Mistral Medium 3.5 costs $1.50/M input and $7.50/M output. Grok is 17% cheaper on input and 67% cheaper on output. For a typical workload of 1M input + 500K output tokens/month, Grok costs $2.50 vs Mistral's $5.25 — saving $2.75/month (52%).

Which has a larger context window, Mistral Medium 3.5 or Grok 4.3?

Grok 4.3 has a 1M token context window, which is 7.8x larger than Mistral Medium 3.5's 128K context. If you need to process long documents or maintain extensive conversation histories, Grok offers significantly more room at a lower price. For typical workloads under 128K tokens, both models are equally capable.

When should I choose Mistral Medium 3.5 over Grok 4.3?

Choose Mistral Medium 3.5 when: (1) you need Mistral's ecosystem and code generation strengths, (2) your workload benefits from Mistral's fine-tuning capabilities, (3) you prefer Mistral's European data governance. Choose Grok 4.3 when: (1) cost efficiency matters (17-67% cheaper), (2) you need up to 1M context, (3) you want xAI's real-time data integration.

Are Mistral Medium 3.5 and Grok 4.3 good for production use?

Both are mid-tier models suitable for production. Mistral Medium 3.5 is known for strong code generation and European data governance. Grok 4.3 from xAI offers exceptional value at 17-67% lower cost with a 1M context window and real-time data access. Both handle chatbot, content generation, and enterprise workloads well.