Model comparison
Mercury 2 vs Claude 4 Sonnet
Capability radar, value bars, and side-by-side posture.
Mercury 2
Not scored
value score
Claude 4 Sonnet
91
value score
Mercury 2 ctx
—
Claude 4 Sonnet ctx
200K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- Claude 4 Sonnet91
Attribute tape
| Field | Mercury 2 | Claude 4 Sonnet |
|---|---|---|
| Developer | Inception | Anthropic |
| Context | — | 200K |
| Modalities | Text, Code, Image | |
| Openness | — | Proprietary Model |
| Speed | — | Fast |
| Price | — | $3/1M in · $15/1M out |
| Value score | — | 91 |
| Summary | Mercury 2 is Inception Labs' diffusion-based reasoning language model that uses parallel token refinement instead of left-to-right autoregressive generation to achieve very low latency inference. It targets production AI workloads such as coding assistants, agents, voice pipelines, and retrieval-augmented applications. | Balanced Claude model for coding and agents. |