Beam 1.0 vs Claude Sonnet 5

Beam 1.0 and Claude Sonnet 5 are closely matched at 44.6 and 47.2 on the LLM Stats Score. Beam 1.0 is 6.7x cheaper per token.

Reflection AI · Anthropic · Updated for 2026

Which is better?

Beam 1.0 and Claude Sonnet 5 are closely matched on the overall LLM Stats Score at 44.6 and 47.2.

In the 7 individual benchmarks reported for both models, Claude Sonnet 5 wins 5; this is a narrower head-to-head signal than the composite indexes.

On price, Beam 1.0 is roughly 6.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Beam 1.0 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

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

Choose Beam 1.0

cost matters — it's about 6.7x cheaper per token
you process long inputs — it offers a 1,048,576 token context window
you want the most recent training data — it shipped Oct 2026
you need open weights you can self-host or fine-tune

Choose Claude Sonnet 5

you value its reported benchmark strengths — it wins 5 of 7 exact shared results

At a glance

The differences that matter most.

Better token value: Beam 1.0

Core performance indexes

LLM Stats Score

44.6

#46 · 22 evals

47.2

#36 · 22 evals

Best

Reasoning

45.5

#37 · 19 evals

46.9

#29 · 19 evals

Best

Coding

33.7

#39 · 9 evals

34.1

#36 · 10 evals

Best

Agents

28.8

#53 · 9 evals

29.9

#49 · 13 evals

Best

Cost, coverage & limits

Benchmark wins

2 of 7

5 of 7

Best

Input price

$0.40 / M

Best

$2.00 / M

Output price

$1.20 / M

Best

$10.00 / M

Context window

1,048,576

Best

1,000,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared

Index

Beam 1.0

Claude Sonnet 5

Math

35.1#45 · 5 evals

37.6#32 · 3 evals

Vision

15.9#105 · 2 evals

33.4#20 · 6 evals

Tool use

26.4#32 · 4 evals

22.1#59 · 4 evals

Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

22 reported for Beam 1.0 · 23 for Claude Sonnet 5

7 shared

Beam 1.0 outperforms in 2 benchmarks (AutomationBench, SWE-Bench Pro), while Claude Sonnet 5 is better at 4 benchmarks (BrowseComp, DeepSWE 1.1, Humanity's Last Exam, SWE-Bench Verified).

Claude Sonnet 5 has a slight edge in benchmark performance.

Thu Oct 29 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Beam 1.0 costs less

For input processing, Beam 1.0 ($0.40/1M tokens) is 5.0x cheaper than Claude Sonnet 5 ($2.00/1M tokens).

For output processing, Beam 1.0 ($1.20/1M tokens) is 8.3x cheaper than Claude Sonnet 5 ($10.00/1M tokens).

In conclusion, Claude Sonnet 5 is more expensive than Beam 1.0.*

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

Lowest available price from all providers

Thu Oct 29 2026 • llm-stats.com

Beam 1.0

Input tokens$0.40

Output tokens$1.20

Best providerTogether

Claude Sonnet 5

Input tokens$2.00

Output tokens$10.00

Best providerAnthropic

Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Beam 1.0 accepts 1,048,576 input tokens compared to Claude Sonnet 5's 1,000,000 tokens. Beam 1.0 can generate longer responses up to 131,072 tokens, while Claude Sonnet 5 is limited to 64,000 tokens.

Beam 1.0

Input1,048,576 tokens

Output131,072 tokens

Claude Sonnet 5

Input1,000,000 tokens

Output64,000 tokens

Thu Oct 29 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude Sonnet 5 supports multimodal inputs, whereas Beam 1.0 does not.

Claude Sonnet 5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Beam 1.0

Text

Images

Audio

Video

Claude Sonnet 5

Text

Images

Audio

Video

License

Usage and distribution terms

Beam 1.0 is licensed under Apache 2.0, while Claude Sonnet 5 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

Claude Sonnet 5

Proprietary

Closed source

Release Timeline

When each model was launched

Beam 1.0 was released on 2026-10-16, while Claude Sonnet 5 was released on 2026-06-30.

Beam 1.0 is 4 months newer than Claude Sonnet 5.

Beam 1.0

Oct 16, 2026

1 weeks ago

3mo newer

Claude Sonnet 5

Jun 30, 2026

4 months ago

Knowledge Cutoff

When training data ends

Beam 1.0 has a documented knowledge cutoff of 2026-06-30, while Claude Sonnet 5'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 Claude Sonnet 5's cutoff date.

Beam 1.0

Jun 2026

Claude Sonnet 5

—

Provider Availability

Beam 1.0 is available from Together, Reflection AI. Claude Sonnet 5 is available from Anthropic, DeepInfra.

Beam 1.0

Together

Input Price:Input: $0.40/1MOutput Price:Output: $1.20/1M

Unknown Organization

Claude Sonnet 5

Anthropic

Input Price:Input: $2.00/1MOutput Price:Output: $10.00/1M

Deepinfra

Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

* 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 Claude Sonnet 5 side-by-side, then vote on the output you prefer.

Beam 1.0

✓ Preferred

Claude Sonnet 5

Open in Playground

FAQ

Common questions about Beam 1.0 vs Claude Sonnet 5.

Which is better, Beam 1.0 or Claude Sonnet 5?

Beam 1.0 and Claude Sonnet 5 are closely matched on the LLM Stats Score at 44.6 and 47.2. Beam 1.0 is made by Reflection AI and Claude Sonnet 5 is made by Anthropic. 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 Claude Sonnet 5 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%. Claude Sonnet 5 scores CharXiv-R: 88.3%, ChartMuseum: 86.7%, SWE-Bench Verified: 85.2%, BrowseComp: 84.7%, GDP.pdf: 81.6%.

Is Beam 1.0 cheaper than Claude Sonnet 5?

Beam 1.0 is 5.0x cheaper for input tokens. Beam 1.0 costs $0.40/M input and $1.20/M output via together. Claude Sonnet 5 costs $2.00/M input and $10.00/M output via anthropic.

What are the context window sizes for Beam 1.0 and Claude Sonnet 5?

Beam 1.0 supports 1.0M tokens and Claude Sonnet 5 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 Claude Sonnet 5?

Key differences include LLM Stats Score (44.6 vs 47.2), context window (1.0M vs 1.0M), input pricing ($0.40 vs $2.00/M), 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 Claude Sonnet 5?

Beam 1.0 is developed by Reflection AI and Claude Sonnet 5 is developed by Anthropic.

Beam 1.0 vs Claude Sonnet 5