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Beam 1.0 vs Laguna S 2.1

Beam 1.0 and Laguna S 2.1 are closely matched at 44.6 and 39.7 on the LLM Stats Score. Laguna S 2.1 is 4.8x cheaper per token.

Reflection AI · Poolside · Updated for 2026

Which is better?

Beam 1.0 and Laguna S 2.1 are closely matched on the overall LLM Stats Score at 44.6 and 39.7.

In the 5 individual benchmarks reported for both models, Beam 1.0 wins 3; this is a narrower head-to-head signal than the composite indexes.

On price, Laguna S 2.1 is roughly 4.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Beam 1.0

  • you value its reported benchmark strengths — it wins 3 of 5 exact shared results
  • you want the most recent training data — it shipped Oct 2026

Choose Laguna S 2.1

  • cost matters — it's about 4.8x cheaper per token

At a glance

The differences that matter most.

Beam 1.0
Reflection AI
Laguna S 2.1
Poolside
Core performance indexes
LLM Stats Score
44.6
#46
39.7
#73
Reasoning
45.5
#37
39.7
#71
Coding
33.7
#39
29.1
#69
Agents
28.8
#53
23.3
#75
Cost, coverage & limits
Benchmark wins
3 of 5
2 of 5
Input price
$0.40 / M
$0.10 / M
Output price
$1.20 / M
$0.20 / M
Context window
1,048,576
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Beam 1.0
Laguna S 2.1
Tool use
26.4#32
15.3#106
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

22 reported for Beam 1.0 · 6 for Laguna S 2.1

5 shared

Beam 1.0 outperforms in 3 benchmarks (DeepSWE 1.1, SWE-Bench Pro, Terminal-Bench 2.1), while Laguna S 2.1 is better at 2 benchmarks (SWE Atlas - Codebase QnA, SWE-bench Multilingual).

Beam 1.0 has a slight edge in benchmark performance.

Thu Oct 22 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Laguna S 2.1 costs less

For input processing, Beam 1.0 ($0.40/1M tokens) is 4.0x more expensive than Laguna S 2.1 ($0.10/1M tokens).

For output processing, Beam 1.0 ($1.20/1M tokens) is 6.0x more expensive than Laguna S 2.1 ($0.20/1M tokens).

In conclusion, Beam 1.0 is more expensive than Laguna S 2.1.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Thu Oct 22 2026 • llm-stats.com
Reflection AI
Beam 1.0
Input tokens$0.40
Output tokens$1.20
Best providerTogether
Poolside
Laguna S 2.1
Input tokens$0.10
Output tokens$0.20
Best providerPoolside
Notice missing or incorrect data?

Model Size

Parameter count comparison

383.3B diff

Beam 1.0 has 383.3B more parameters than Laguna S 2.1, making it 324.8% larger.

Reflection AI
Beam 1.0
501.3Bparameters
Poolside
Laguna S 2.1
118.0Bparameters
501.3B
Beam 1.0
118.0B
Laguna S 2.1

Context Window

Maximum input and output token capacity

Both models have the same input context window of 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
Poolside
Laguna S 2.1
Input1,048,576 tokens
Output- tokens
Thu Oct 22 2026 • llm-stats.com

License

Usage and distribution terms

Beam 1.0 is licensed under Apache 2.0, while Laguna S 2.1 uses OpenMDW License v1.1.

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

Beam 1.0

Apache 2.0

Open weights

Laguna S 2.1

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

Beam 1.0 was released on 2026-10-16, while Laguna S 2.1 was released on 2026-07-21.

Beam 1.0 is 3 months newer than Laguna S 2.1.

Beam 1.0

Oct 16, 2026

4 days ago

2mo newer
Laguna S 2.1

Jul 21, 2026

3 months ago

Knowledge Cutoff

When training data ends

Beam 1.0 has a documented knowledge cutoff of 2026-06-30, while Laguna S 2.1's cutoff date is not specified.

We can confirm Beam 1.0's training data extends to 2026-06-30, but cannot make a direct comparison without Laguna S 2.1's cutoff date.

Beam 1.0

Jun 2026

Laguna S 2.1

—

Provider Availability

Beam 1.0 is available from Together, Reflection AI. Laguna S 2.1 is available from Poolside.

Beam 1.0

together logo
Together
Input Price:Input: $0.40/1MOutput Price:Output: $1.20/1M
reflection logo
Unknown Organization

Laguna S 2.1

poolside logo
Poolside
Input Price:Input: $0.10/1MOutput Price:Output: $0.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Beam 1.0 and Laguna S 2.1 side-by-side, then vote on the output you prefer.

Beam 1.0
✓ Preferred
Laguna S 2.1
Open in Playground

FAQ

Common questions about Beam 1.0 vs Laguna S 2.1.

Which is better, Beam 1.0 or Laguna S 2.1?

Beam 1.0 and Laguna S 2.1 are closely matched on the LLM Stats Score at 44.6 and 39.7. Beam 1.0 is made by Reflection AI and Laguna S 2.1 is made by Poolside. 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 Laguna S 2.1 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%. Laguna S 2.1 scores SWE-bench Multilingual: 78.5%, Terminal-Bench 2.1: 70.2%, SWE-Bench Pro: 59.4%, Toolathlon: 49.7%, SWE Atlas - Codebase QnA: 46.2%.

Is Beam 1.0 cheaper than Laguna S 2.1?

Laguna S 2.1 is 4.0x cheaper for input tokens. Beam 1.0 costs $0.40/M input and $1.20/M output via together. Laguna S 2.1 costs $0.10/M input and $0.20/M output via poolside.

What are the context window sizes for Beam 1.0 and Laguna S 2.1?

Beam 1.0 supports 1.0M tokens and Laguna S 2.1 supports 1.0M 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 Laguna S 2.1?

Key differences include LLM Stats Score (44.6 vs 39.7), input pricing ($0.40 vs $0.10/M), licensing (Apache 2.0 vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Beam 1.0 and Laguna S 2.1?

Beam 1.0 is developed by Reflection AI and Laguna S 2.1 is developed by Poolside.

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