DATAKU vs Ai2 (formerly Allen Institute for AI)

DATAKU is a data science site that tracks AI benchmarks, API pricing, and model releases, then packages the numbers into free calculators and downloadable datasets. The homepage archives articles on inference costs, funding rounds, and head-to-head model comparisons, while the Tools section hosts eight utilities such as an LLM cost calculator, benchmark decoder, and model graveyard.

Most AI news sites summarize press releases. DATAKU cross-references provider docs, leaderboard scores, and its own pricing tables, which is why the downloadable datasets page lists 48-row pricing histories and 62-row benchmark score tables under CC BY 4.0 licenses.

Data analysts, ML engineers, and buyers use DATAKU when they need cost-per-token math, benchmark context, or CSV exports instead of marketing claims. The About page describes the project as benchmark and pricing tracking run by a former Tokyo data analyst.

Ai2 is a nonprofit data science and AI research institute that builds fully open language and multimodal models, plus applied research platforms for science, climate, and robotics. Founded by Paul Allen in 2014 and based in Seattle, the institute publishes model weights, training data, code, and evaluation recipes rather than closed APIs alone.

Where many labs release weights but hide data and training steps, Ai2 treats the whole model lifecycle as public. Olmo 3 ships base, instruct, and think variants up to 32B parameters with OlmoCore, Open Instruct, and preprocessing tools. Tülu 3 and Molmo 2 extend that openness into post-training and vision-language research.

Researchers, ML engineers, and academic teams use Ai2 when they need reproducible foundations instead of black-box endpoints. The work spans language models, multimodal models, Semantic Scholar, Asta for scientific discovery, and planet-focused tools like EarthRanger and Skylight.