Cogito v2 Preview Llama 405B

cogito-v2-preview-llama-405b

Open Source

About

Cogito v2 Preview Llama 405B is a 405B dense hybrid reasoning model from Deep Cogito, fine-tuned from Llama 3.1 405B using Iterated Distillation and Amplification (IDA). Released July 2025. According to Deep Cogito, approaches frontier model performance.

Capabilities

VisionMultimodalReasoningFunction CallingTool UseStructured OutputsCode ExecutionPrompt CachingBatch APIAudioFine-tuning

Rankings

Best AI Agents & Agentic Models Best Open Source LLMs Best LLMs for Reasoning & Math Best LLMs for Function Calling & Tool Use Cheapest LLM APIs Best LLM APIs Best Free LLMs Best LLMs for Writing Best LLMs for Marketing Best LLMs for Customer Support

Specifications

FamilyCogito

Released2025-07-31

Parameters405B

ArchitectureDecoder Only

Specializationgeneral

LicenseLlama 3.1 Community

Trainingfinetuned

Created by

Building general superintelligence through advanced reasoning and iterative self-improvement.

San Francisco, California, United States

Founded 2024