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- Inception
- Mercury 3
Mercury 3: Benchmarks, Pricing & Context Window
Mercury 3 is a language model from Inception, released in October 2026, with a 1M-token context window, and pricing from $0.100/M input, $0.010/M cached input, $0.350/M output.
Mercury 3 is Inception's flagship diffusion-based LLM (dLLM), released 2026-10-19 and described as the most capable diffusion LLM released to date. Inception says it is more than 40x larger in total parameters than Mercury 1 and runs at
Mercury 3 benchmarks
Capability tiers
Standing within each category, adjusted for leaderboard depth.
Real tasks performance
High-confidence performance for Mercury 3 across real-world prompt categories. Only 95% intervals at most 4 points wide are shown.
Performance by conversation depth
How Mercury 3 holds up as conversations get longer.
Quality Tracker
Mercury 3 Performance Across Datasets
Scores sourced from the model's scorecard, paper, or official blog posts
Mercury 3 pricing
Providers
Mercury 3 starts at $0.100 per million input tokens and $0.350 per million output tokens via Inception. Reused prompt prefixes cost $0.0100 per million cached input tokens.
| Provider | Input $/M | Cached input $/M | Output $/M | Context in / out | TTFT p95 s | Output p5 c/s | Modalities in / out |
|---|---|---|---|---|---|---|---|
| $0.100 | $0.0100 | $0.350 | 1.0M/131.1K | — | — | / |
Cached input is the discounted price for prompt tokens served from a provider cache. TTFT is time to first token. Output is characters per second; p5 is the sustained floor exceeded by 95% of observed requests.
Mercury 3 context window
Input and output token limits for Mercury 3, plus how it ranks on long-context understanding.
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Make it with
Mercury 3.
Mercury 3 latency
Mercury 3 time to first token, sustained output throughput, and failed-request rate from live model usage over the trailing 7 days.
Mercury 3 examples
Recent arena outputs from Mercury 3, picked from the highest-ranked matchups.
Mercury 3 license
Mercury 3 is a proprietary model available under its provider's product and API terms.
- License
- Proprietary
- Hosted access
Proprietary license - usage restrictions apply
Mercury 3 resources
Official sources for Mercury 3: provider documentation, official playground, official launch post.
Mercury 3 vs other models
The most-compared alternatives to Mercury 3 are Qwen3.5-397B-A17B, Solar Pro 4, o3. Open any pair side-by-side for benchmarks, pricing, context, and latency.
Models like Mercury 3
Models ranked just above and below Mercury 3 by LLM Stats score.
FAQ
Common questions about Mercury 3.