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Model Library
/Cogito 671B v2.1
cogito/cogito-671b-v2-p1

    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

    Fine-tuning

    Docs

    Cogito 671B v2.1 can be customized with your data to improve responses. Fireworks uses LoRA to efficiently train and deploy your personalized model

    Serverless

    Docs

    Immediately run model on pre-configured GPUs and pay-per-token

    On-demand Deployment

    Docs

    On-demand deployments give you dedicated GPUs for Cogito 671B v2.1 using Fireworks' reliable, high-performance system with no rate limits.

    Available Serverless

    Run queries immediately, pay only for usage

    $1.20
    Per 1M Tokens

    Metadata

    State
    Ready
    Created on
    11/13/2025
    Kind
    Base model
    Provider
    N/A

    Specification

    Calibrated
    No
    Mixture-of-Experts
    Yes
    Parameters
    671B

    Supported Functionality

    Fine-tuning
    Supported
    Serverless
    Supported
    Context Length
    163.8k tokens
    Function Calling
    Not supported
    Embeddings
    Not supported
    Rerankers
    Not supported
    Support image input
    Not supported