Reflection · Released 2026-10-16

Beam 1.0

The open 501B/23B text model has Apache 2.0 main weights and a current API with 1M combined context and 128K maximum output. AA lists 30 without naming effort; keep it separate from the old preview identity and vendor scores.

Original model explanation ↗

Where it stands in the leaderboard

Artificial Analysis intelligence comparison

30points

Intelligence Index

Rank 28 among included models

Test configuration: Effort not named in source table

Source read · · v4.3.2

Each model uses its highest tested setting, with fallback conditions retained. Original K3 remains at max44 from its readable individual page; the aggregate page now lists K3.1 Pro separately. Scores use one evaluator. The index mainly evaluates English text tasks; examine Chinese and image capabilities separately.

Source evaluation & rankings ↗

Evaluations: conditions and results

How this capability connects to works and uses

Reflection model evolution

  1. Beam · Preview

    The first model preview targets coding, reasoning and tool tasks, with gradual API access and weights planned for this month.

    Original release ↗
  2. Beam 1.0 · 开放权重

    BF16, FP8 and NVFP4 main weights ship under Apache 2.0 alongside a DFlash2 drafter; the current 1.0 API has 1M combined context.

    Original release ↗