Development

Reflection’s open Beam reports a SWE-bench score

development2026-10-09benchmarks

Claim

The newsletter reports Reflection’s open Beam model scoring 80.9 on SWE-bench Verified.

Reported metric: 80.9

Reporting date: 2026-10-09 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to October 9, 2026 (theinnermostloop.substack.com)
Source linked by the October 9 issue (reflection.ai)

Indexed from Dr. Alex Wissner-Gross’s October 9, 2026 newsletter. Linked-source claims have not been independently verified.

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About

Reported in

Welcome to October 9, 2026

Actor

Reflection

Referenced by

Welcome to October 9, 2026

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Citation formatCitation text

Reflection’s open Beam reports a SWE-bench score
Innermost Loop KB — secondary record
Reporting date: 2026-10-09
KB permalink: https://nicholsn.github.io/innermost-loop-kb/developments/2026-10-09-beam-score
Claim: The newsletter reports Reflection’s open Beam model scoring 80.9 on SWE-bench Verified.
Attributed sources:
- Welcome to October 9, 2026 — https://theinnermostloop.substack.com/p/welcome-to-october-9-2026
- Source linked by the October 9 issue — https://reflection.ai/blog/introducing-beam
This citation does not imply independent verification of linked-source claims.

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