Cogito 671B v2.1 API & Playground

Cogito v2.1 blends standard LLM behavior with optional self-reflection for stronger reasoning. Trained across 30+ languages with a 128k context, it delivers standout performance in coding, STEM and general instruction-following.

Cogito 671B v2.1 API Features

On-demand Deployment

Docs

On-demand deployments allow you to use Cogito 671B v2.1 on dedicated GPUs with Fireworks' high-performance serving stack with high reliability and no rate limits.

Metadata

State

Ready

Created on

13 NOV, 2025

Kind

Base model

Provider

Deep Cogito

Specifications

Calibrated

Mixture-of-Experts

Yes

Parameters

671B

Supporting Functionality

Fine-tuning

Not Supported

Serverless

Not Supported

Context Length

163k tokens

Function Calling

Not Supported

Embeddings

Not Supported

Rerankers

Not Supported

Supporting image input

Not Supported