Compare Models

Beam 1.0

Beam 1.0 is an open-weight model from Reflection, released October 16, 2026. It ranks #21 of 23 models on the Vals Index with 43.42%. Its best result is #47 of 116 on Vibe Code Bench v1.1.

Release Date: Oct 16, 2026

Developer Reflection  🇺🇸
Context Window 1M
Max Output Tokens 131k
Token Costs (in/out) N/A
Weights Open
Input Modalities

Accuracy

43.42 % ± 1.06

Avg. Cost (In/Out)

N/A

Latency

7 min 27 s

Vals Index
BenchmarksAccuracyRankings
Vals Index

43.42%

±1.06
21/23
Code Migration v1.1

22.85%

±3.28
23/26
EMB v1.1

64.73%

±2.26
26/30
Finance Agent v2.1

51.83%

±2.11
26/28
Legal Research Bench

28.85%

±3.15
51/82
Tax Agent Bench

8.81%

±1.90
60/73
Vibe Code Bench v1.1

66.44%

±4.06
47/116
HLAB-Vals-1.1

4.58%

±1.77
20/24
Terminal-Bench 4.0

4.04%

±1.34
45/52
Proprietary BenchmarksAcademic BenchmarksIndustry Partners
Vals
Default Provider : Reflection
Temperature: 0.7
Top P: 0.99
Top K: Default
Max Output Tokens: 131,072