Mercury 3
Mercury 3 is Inception's diffusion language model for fast chat, coding, and multi-step agents. It accepts and generates text, with adjustable reasoning, parallel tool calls, structured JSON output, and a shared 1,000,000-token context window. Responses can use up to 131,072 tokens, including reasoning, within the remaining context.
- Reasoning
- Tool Calling
- Parallel Tool Calls
- Structured Output
Added Oct 19, 2026
Pricing
Auto routing · per 1M tokens- Input
- $0.10
- Output
- $0.35
- Cache read
- $0.01
Specifications
- Context window
- 1M
- Max output
- 131.1K
- Avg output (7d)
- 381 tokens
- Longer than 33% of models
Benchmarks
Benchmarks
Sourced from Design Arena.
Best Category
3D
Best Elo
1243
Best Rank Percentile
Top 28%
Ranking Distribution
4,991 battles
60%
45%
30%
15%
0%
9.2%
First
33.5%
Second
40.7%
Third
16.5%
Fourth
Category Performance
Models Arena
3D
1243
Elo
48.9%
Win
56.9s
Avg Time
#50
Rank
Website
1236
Elo
46.2%
Win
53.5s
Avg Time
#71
Rank
UI Component
1234
Elo
45.7%
Win
52.8s
Avg Time
#65
Rank
Game Development
1217
Elo
44.3%
Win
74.7s
Avg Time
#68
Rank
Data Visualization
1216
Elo
45.5%
Win
55.4s
Avg Time
#67
Rank
SVG
1176
Elo
42.7%
Win
50.3s
Avg Time
#65
Rank
Updated Nov 8, 2026, 8:36 PM · Matched as Mercury 3
Design ArenaProviders
Auto routing is available for this model. Explicit provider selection is not available.
Recommended | $0.10 | $0.35 | $0.01 | N/A | N/A |
| $0.10 | $0.35 | $0.01 | N/A | N/A |