How large is InternLM2.5's context window?

InternLM2.5 includes a variant with a 1-million-token context window, which was among the largest available in any open-weight model at the time of its 2024 release. This massive context enables processing extremely long documents, code repositories, or extended conversations in a single prompt.

Who developed InternLM2.5?

InternLM2.5 was developed by Shanghai AI Laboratory, one of China's prominent AI research institutions. The InternLM series is part of the lab's broader open-source AI initiatives, which also include frameworks like OpenCompass for model evaluation.

Is InternLM2.5 open source?

Shanghai AI Laboratory released InternLM2.5 model weights openly, making them available through Hugging Face and their own GitHub repository. The releases include multiple model sizes to support different deployment scenarios and research needs.

What improvements does InternLM2.5 offer over the original InternLM?

InternLM2.5, released in 2024, improved over the first-generation InternLM series in areas including mathematical reasoning, coding proficiency, and tool use. The introduction of the million-token context window variant was one of the headline upgrades, along with enhanced data quality and training techniques.

How does InternLM2.5 compare to competitors?

Lunoo provides objective, AI-powered comparisons. Use the comparison tool to see InternLM2.5 side-by-side with any alternative.

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InternLM2.5

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description InternLM2.5 Overview

InternLM2.5 is the second-generation InternLM model series from Shanghai AI Laboratory, released in 2024, featuring a 1-million-token context window variant.

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How good is InternLM2.5?

InternLM2.5 scores 8.05/10 (Great) on Lunoo, making it a well-rated option in the Model category. Respected long-context open series with strong benchmarks; adoption narrower than Qwen or Llama ecosystems.

What are the best alternatives to InternLM2.5?

See our alternatives page for InternLM2.5 for a ranked list with scores. Top alternatives include: AlphaZero, AlphaFold 3, AlphaFold 2.

How does InternLM2.5 compare to AlphaZero?

See our detailed comparison of InternLM2.5 vs AlphaZero with scores, features, and an AI-powered verdict.

Is InternLM2.5 worth it in 2026?

With a score of 8.05/10, InternLM2.5 is highly rated in Model. See all Model ranked.

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