Mistral Medium 3.5 is a dense 128B instruction-following model from Mistral AI. It supports text and image inputs with text output, and is designed for agentic workflows, coding, and complex...
Model details →Mistral: Mistral Medium 3.5 vs xAI: Grok 4
Mistral: Mistral Medium 3.5 wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
Grok 4 is xAI's latest reasoning model with a 256k context window. It supports parallel tool calling, structured outputs, and both image and text inputs. Note that reasoning is not exposed, reasoning cannot be disabled, and the reasoning ef…
Model details →Side-by-side comparison
| Capability | Mistral: Mistral Medium 3.5 | xAI: Grok 4 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 262K | 256K | 🏆 Mistral: Mistral Medium 3.5 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $1.50 | $3.00 | 🏆 Mistral: Mistral Medium 3.5 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $7.50 | $15.00 | 🏆 Mistral: Mistral Medium 3.5 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Mistral: Mistral Medium 3.5 better than xAI: Grok 4?
Mistral: Mistral Medium 3.5 wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Mistral: Mistral Medium 3.5 and xAI: Grok 4?
Input: $1.50 vs $3.00 per 1M tokens. Output: $7.50 vs $15.00 per 1M tokens.
What context windows do Mistral: Mistral Medium 3.5 and xAI: Grok 4 support?
Mistral: Mistral Medium 3.5 supports up to 262K tokens. xAI: Grok 4 supports up to 256K tokens.
Do both Mistral: Mistral Medium 3.5 and xAI: Grok 4 support tool calling?
Mistral: Mistral Medium 3.5: yes. xAI: Grok 4: yes.