The AI arena is free today

Open Superagent

Beam 1.0 vs Gemini 4 Carbon

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 44.3.

Reflection AI · Google · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 59.0 to 44.3, ranking #2 overall.

In the 1 individual benchmarks reported for both models, Gemini 4 Carbon 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 Beam 1.0

  • you need open weights you can self-host or fine-tune

Choose Gemini 4 Carbon

  • overall performance matters — it scores 59.0 and ranks #2 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • 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

At a glance

The differences that matter most.

Beam 1.0
Reflection AI
Gemini 4 Carbon
Google
Core performance indexes
LLM Stats Score
44.3
#49
59.0
#2
Reasoning
45.1
#40
54.9
#5
Coding
33.8
#44
48.1
#3
Agents
28.8
#59
46.0
#2
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
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

2 shared
Index
Beam 1.0
Gemini 4 Carbon
Vision
16.1#108
36.0#12
Tool use
26.9#34
35.8#3
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

22 reported for Beam 1.0 · 16 for Gemini 4 Carbon

1 shared

Beam 1.0 outperforms in 0 benchmarks, while Gemini 4 Carbon is better at 1 benchmark (AutomationBench).

Gemini 4 Carbon significantly outperforms across most benchmarks.

Thu Oct 29 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
Google
Gemini 4 Carbon
Input- tokens
Output- tokens
Thu Oct 29 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Gemini 4 Carbon supports multimodal inputs, whereas Beam 1.0 does not.

Gemini 4 Carbon can handle both text and other forms of data like images, making it suitable for multimodal applications.

Beam 1.0

Text
Images
Audio
Video

Gemini 4 Carbon

Text
Images
Audio
Video

License

Usage and distribution terms

Beam 1.0 is licensed under Apache 2.0, while Gemini 4 Carbon 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

Gemini 4 Carbon

Proprietary

Closed source

Release Timeline

When each model was launched

Beam 1.0 was released on 2026-10-16, while Gemini 4 Carbon was released on 2026-10-28.

Gemini 4 Carbon is 0 month newer than Beam 1.0.

Beam 1.0

Oct 16, 2026

1 weeks ago

Gemini 4 Carbon

Oct 28, 2026

-3 days ago

1w newer

Knowledge Cutoff

When training data ends

Beam 1.0 has a documented knowledge cutoff of 2026-06-30, while Gemini 4 Carbon'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 Gemini 4 Carbon's cutoff date.

Beam 1.0

Jun 2026

Gemini 4 Carbon

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Beam 1.0 and Gemini 4 Carbon side-by-side, then vote on the output you prefer.

Beam 1.0
✓ Preferred
Gemini 4 Carbon
Open in Playground

FAQ

Common questions about Beam 1.0 vs Gemini 4 Carbon.

Which is better, Beam 1.0 or Gemini 4 Carbon?

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 44.3. Beam 1.0 is made by Reflection AI and Gemini 4 Carbon is made by Google. 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 Gemini 4 Carbon 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%. Gemini 4 Carbon scores Gray Swan IPI Benchmark: 100.0%, Vending-Bench 2: 100.0%, Graphwalks BFS >128k: 96.2%, WebDev Arena: 88.4%, SEC-bench Pro: 88.2%.

What are the context window sizes for Beam 1.0 and Gemini 4 Carbon?

Beam 1.0 supports 1.0M tokens and Gemini 4 Carbon 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 Gemini 4 Carbon?

Key differences include LLM Stats Score (44.3 vs 59.0), 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 Gemini 4 Carbon?

Beam 1.0 is developed by Reflection AI and Gemini 4 Carbon is developed by Google.

Related comparisons