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Beam 1.0 vs Seed 2.0 Lite

Beam 1.0 leads the LLM Stats Score 44.6 to 31.5.

Reflection AI · ByteDance · Updated for 2026

Which is better?

Beam 1.0 leads the overall LLM Stats Score 44.6 to 31.5, ranking #46 overall.

In the 3 individual benchmarks reported for both models, Beam 1.0 wins 3; 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 Beam 1.0

  • overall performance matters — it scores 44.6 and ranks #46 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 3 of 3 exact shared results
  • you want the most recent training data — it shipped Oct 2026
  • you need open weights you can self-host or fine-tune

Choose Seed 2.0 Lite

  • you are already invested in the ByteDance ecosystem

At a glance

The differences that matter most.

Beam 1.0
Reflection AI
Seed 2.0 Lite
ByteDance
Core performance indexes
LLM Stats Score
44.6
#46
31.5
#132
Reasoning
45.5
#37
31.1
#131
Coding
33.7
#39
17.9
#134
Cost, coverage & limits
Benchmark wins
3 of 3
0 of 3
Input price
$0.40 / M
— / M
Output price
$1.20 / M
— / M
Context window
1,048,576
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Beam 1.0
Seed 2.0 Lite
Math
35.1#45
25.1#121
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

22 reported for Beam 1.0 · 5 for Seed 2.0 Lite

3 shared

Beam 1.0 outperforms in 3 benchmarks (AIME 2026, GPQA, SWE-Bench Verified), while Seed 2.0 Lite is better at 0 benchmarks.

Beam 1.0 significantly outperforms across most benchmarks.

Sat Oct 24 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Beam 1.0 specifies input context (1,048,576 tokens). Only Beam 1.0 specifies output context (131,072 tokens).

Reflection AI
Beam 1.0
Input1,048,576 tokens
Output131,072 tokens
ByteDance
Seed 2.0 Lite
Input- tokens
Output- tokens
Sat Oct 24 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Seed 2.0 Lite supports multimodal inputs, whereas Beam 1.0 does not.

Seed 2.0 Lite can handle both text and other forms of data like images, making it suitable for multimodal applications.

Beam 1.0

Text
Images
Audio
Video

Seed 2.0 Lite

Text
Images
Audio
Video

License

Usage and distribution terms

Beam 1.0 is licensed under Apache 2.0, while Seed 2.0 Lite uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

Beam 1.0

Apache 2.0

Open weights

Seed 2.0 Lite

Proprietary

Closed source

Release Timeline

When each model was launched

Beam 1.0 was released on 2026-10-16, while Seed 2.0 Lite was released on 2026-02-14.

Beam 1.0 is 8 months newer than Seed 2.0 Lite.

Beam 1.0

Oct 16, 2026

6 days ago

8mo newer
Seed 2.0 Lite

Feb 14, 2026

8 months ago

Knowledge Cutoff

When training data ends

Beam 1.0 has a knowledge cutoff of 2026-06-30, while Seed 2.0 Lite has a cutoff of 2024-01-01.

Beam 1.0 has more recent training data (up to 2026-06-30), making it potentially better informed about events through that date compared to Seed 2.0 Lite (2024-01-01).

Beam 1.0

Jun 2026

2.4 yr newer
Seed 2.0 Lite

Jan 2024

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Beam 1.0 and Seed 2.0 Lite side-by-side, then vote on the output you prefer.

Beam 1.0
✓ Preferred
Seed 2.0 Lite
Open in Playground

FAQ

Common questions about Beam 1.0 vs Seed 2.0 Lite.

Which is better, Beam 1.0 or Seed 2.0 Lite?

Beam 1.0 leads the LLM Stats Score 44.6 to 31.5. Beam 1.0 is made by Reflection AI and Seed 2.0 Lite is made by ByteDance. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Beam 1.0 compare to Seed 2.0 Lite in benchmarks?

Beam 1.0 scores AIME 2026: 97.7%, GPQA: 90.6%, LiveCodeBench: 88.3%, SWE-Bench Verified: 81.6%, MCP Atlas: 80.8%. Seed 2.0 Lite scores AIME 2025: 93.0%, AIME 2026: 88.3%, GPQA: 85.1%, LiveCodeBench v6: 81.7%, SWE-Bench Verified: 73.5%.

What are the context window sizes for Beam 1.0 and Seed 2.0 Lite?

Beam 1.0 supports 1.0M tokens and Seed 2.0 Lite supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Beam 1.0 and Seed 2.0 Lite?

Key differences include LLM Stats Score (44.6 vs 31.5), multimodal support (no vs yes), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Beam 1.0 and Seed 2.0 Lite?

Beam 1.0 is developed by Reflection AI and Seed 2.0 Lite is developed by ByteDance.

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