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
- $0.0100
Specifications
- Context window
- 1M
- Max output
- 131.1K
- Avg output (7d)
- 2.3K tokens
- Longer than 93% of models
Benchmarks
Benchmarks
Sourced from Design Arena.
Best Category
UI Component
Best Elo
1253
Best Rank Percentile
Top 31%
Ranking Distribution
1,574 battles
60%
45%
30%
15%
0%
9.7%
First
34.2%
Second
40.2%
Third
15.8%
Fourth
Category Performance
Models Arena
UI Component
1253
Elo
46.8%
Win
55.5s
Avg Time
#55
Rank
Website
1244
Elo
47.5%
Win
56.6s
Avg Time
#65
Rank
Game Development
1226
Elo
44.4%
Win
80.0s
Avg Time
#60
Rank
Data Visualization
1192
Elo
44.0%
Win
62.5s
Avg Time
#81
Rank
Updated Oct 22, 2026, 2:49 AM · Matched as Mercury 3
Design ArenaProviders
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Reliability
Last 3 days