Beam 1.0
Reflection AI · Released 7 Oct 2026 · Open weights
Reflection AI's open model for coding agents: among the fastest models here, with a strong LiveBench coding score, Apache 2.0.
Key facts
- Maker
- Reflection AI
- Released
- 7 Oct 2026
- Open weights
- Yes, you can download it and run it yourself
- License
- Apache 2.0: free for almost any use
- Size
- 501B total, 23B active parametersB = billion, T = trillion. Bigger usually needs a stronger computer.
- Official page
- Official page for Beam 1.0 (huggingface.co)
Scores
"Independent" = run by an outside group. "Maker's own number" = the company's own claim.
All-roundArtificial Analysis Intelligence Index
30 index points #14 of 17 models scored independent
One combined score from many independent tests of how smart a model is.
as of 18 Oct 2026 · source
Build websites & appsLMArena WebDev
1438 Arena score #15 of 18 models scored independent
When people ask two AIs to build the same website or app and compare the results, which one do they pick?
setting: 501b-a23b · as of 17 Oct 2026 · source
CodingLiveBench 2.0 Coding
83.9 score out of 100 #10 of 15 models scored independent
Fresh coding tasks with tests that check the answer, changed often so models cannot memorize them.
setting: highest supported effort · as of 14 Oct 2026 · source
ReasoningLiveBench 2.0 Reasoning
80.2 score out of 100 #11 of 15 models scored independent
Fresh logic and puzzle questions with one right answer, changed often so models cannot memorize them.
setting: highest supported effort · as of 14 Oct 2026 · source
SpeedOutput speed
228 tokens per second #3 of 16 models scored independent
How many tokens (pieces of words) per second the model writes once it starts answering. Higher is faster.
as of 18 Oct 2026 · source
How it compares
The 3 models closest to Beam 1.0 on the Artificial Analysis Intelligence Index, an all-round score. Beam 1.0: 30 index points, #14 of 17 models scored.
News about Beam 1.0 on ITG Now
Newest first.
More from Reflection AI
FAQ
Is Beam 1.0 free and open?
Beam 1.0 has open weights: you can download it and run it on your own computer or server. License: Apache 2.0: free for almost any use.
How much does Beam 1.0 cost?
There is no listed price per token. It has open weights, so you can run it yourself or through a host you pick.
What is Beam 1.0 best at?
Reflection AI's open model for coding agents: among the fastest models here, with a strong LiveBench coding score, Apache 2.0. Its best result: #3 of 16 models scored on Output speed (speed).
Who makes Beam 1.0?
Beam 1.0 is made by Reflection AI. It came out on 7 Oct 2026.