Mercury is the first diffusion large language model (dLLM). Applying a breakthrough discrete diffusion approach, the model runs 5-10x faster than even speed optimized models like GPT-4.1 Nano and Claude 3.5 Haiku while matching their perfor…
Model details →Inception: Mercury vs Mistral: Devstral Medium
Inception: Mercury wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Devstral Medium is a high-performance code generation and agentic reasoning model developed jointly by Mistral AI and All Hands AI. Positioned as a step up from Devstral Small, it achieves 61.6% on SWE-Bench Verified, placing it ahead of Ge…
Model details →Side-by-side comparison
| Capability | Inception: Mercury | Mistral: Devstral Medium | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 128K | 131K | 🏆 Mistral: Devstral Medium |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.25 | $0.40 | 🏆 Inception: Mercury |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.75 | $2.00 | 🏆 Inception: Mercury |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | — | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | — | Tie |
Frequently asked questions
Is Inception: Mercury better than Mistral: Devstral Medium?
Inception: Mercury wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Inception: Mercury and Mistral: Devstral Medium?
Input: $0.25 vs $0.40 per 1M tokens. Output: $0.75 vs $2.00 per 1M tokens.
What context windows do Inception: Mercury and Mistral: Devstral Medium support?
Inception: Mercury supports up to 128K tokens. Mistral: Devstral Medium supports up to 131K tokens.
Do both Inception: Mercury and Mistral: Devstral Medium support tool calling?
Inception: Mercury: yes. Mistral: Devstral Medium: yes.