Mercury 2.5 is the fastest reasoning LLM, and the latest diffusion LLM (dLLM) from Inception. Instead of generating tokens sequentially, Mercury 2.5 produces and refines multiple tokens in parallel, achieving...
Model details →Inception: Mercury 2.5 Preview vs Mistral: Mistral Small 4 (batch)
Inception: Mercury 2.5 Preview and Mistral: Mistral Small 4 (batch) are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
Mistral Small 4 is the next major release in the Mistral Small family, unifying the capabilities of several flagship Mistral models into a single system. It combines strong reasoning from...
Model details →Side-by-side comparison
| Capability | Inception: Mercury 2.5 Preview | Mistral: Mistral Small 4 (batch) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 260K | 262K | 🏆 Mistral: Mistral Small 4 (batch) |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.04 | $0.15 | 🏆 Inception: Mercury 2.5 Preview |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.15 | $0.60 | 🏆 Inception: Mercury 2.5 Preview |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 Mistral: Mistral Small 4 (batch) |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Inception: Mercury 2.5 Preview better than Mistral: Mistral Small 4 (batch)?
Inception: Mercury 2.5 Preview and Mistral: Mistral Small 4 (batch) are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between Inception: Mercury 2.5 Preview and Mistral: Mistral Small 4 (batch)?
Input: $0.04 vs $0.15 per 1M tokens. Output: $0.15 vs $0.60 per 1M tokens.
What context windows do Inception: Mercury 2.5 Preview and Mistral: Mistral Small 4 (batch) support?
Inception: Mercury 2.5 Preview supports up to 260K tokens. Mistral: Mistral Small 4 (batch) supports up to 262K tokens.
Do both Inception: Mercury 2.5 Preview and Mistral: Mistral Small 4 (batch) support tool calling?
Inception: Mercury 2.5 Preview: yes. Mistral: Mistral Small 4 (batch): yes.