AI model library — official specs, cutoffs & comparisons · Headless Thrones

1 matching model

ReflectionAvailable

Beam 1.0 501B A23B

Beam · Beam-1.0-501B-A23B

API / Open weights

Context: 1,048,576 tokens
Max. output: 131,072 tokens
Knowledge cutoff: Jun 30, 2026Knowledge cutoff · day precision

Go beyond the spec sheet

The decisions behind the numbers.

Source-checked guides to pricing, usable context, and access restrictions.

Claude Sonnet 4.6 pricing: API costs, caching and real workload math GPT-5.4 context window: the 1.05M limit, output budget and cost threshold Gemini 2.5 Pro context window: input limits, access and long-document costs GPT-5.4 mini context window: 400K capacity and practical task budgets