Mercury 3 vs Seed 2.0 Lite
Mercury 3 and Seed 2.0 Lite are closely matched at 36.1 and 31.5 on the LLM Stats Score.
Inception · ByteDance · Updated for 2026
Which is better?
Mercury 3 and Seed 2.0 Lite are closely matched on the overall LLM Stats Score at 36.1 and 31.5.
In the 1 individual benchmarks reported for both models, Mercury 3 wins 1; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Mercury 3
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you want the most recent training data — it shipped Oct 2026
Choose Seed 2.0 Lite
- you are already invested in the ByteDance ecosystem
At a glance
The differences that matter most.
Individual benchmarks
12 reported for Mercury 3 · 5 for Seed 2.0 Lite
Mercury 3 outperforms in 1 benchmarks (GPQA), while Seed 2.0 Lite is better at 0 benchmarks.
Mercury 3 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Mercury 3 specifies input context (1,000,000 tokens). Only Mercury 3 specifies output context (131,072 tokens).
Input capabilities
Documented input modalities across available providers
Seed 2.0 Lite supports multimodal inputs, whereas Mercury 3 does not.
Seed 2.0 Lite can handle both text and other forms of data like images, making it suitable for multimodal applications.
Mercury 3
Seed 2.0 Lite
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Mercury 3 was released on 2026-10-19, while Seed 2.0 Lite was released on 2026-02-14.
Mercury 3 is 8 months newer than Seed 2.0 Lite.
Oct 19, 2026
5 days ago
8mo newerFeb 14, 2026
8 months ago
Knowledge Cutoff
When training data ends
Seed 2.0 Lite has a documented knowledge cutoff of 2024-01-01, while Mercury 3's cutoff date is not specified.
We can confirm Seed 2.0 Lite's training data extends to 2024-01-01, but cannot make a direct comparison without Mercury 3's cutoff date.
—
Jan 2024
Outputs Comparison
Judge for yourself.
Run your own prompts against Mercury 3 and Seed 2.0 Lite side-by-side, then vote on the output you prefer.
FAQ
Common questions about Mercury 3 vs Seed 2.0 Lite.