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Model Library
/Deepseek/Deepseek R1 05/28
fireworks/deepseek-r1-0528

    05/28 updated checkpoint of Deepseek R1. Its overall performance is now approaching that of leading models, such as O3 and Gemini 2.5 Pro. Compared to the previous version, the upgraded model shows significant improvements in handling complex reasoning tasks, and this version also offers a reduced hallucination rate, enhanced support for function calling, and better experience for vibe coding. Note that fine-tuning for this model is only available through contacting fireworks at https://fireworks.ai/company/contact-us.

    Fireworks Features

    Fine-tuning

    Docs

    Deepseek R1 05/28 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 Deepseek R1 05/28 using Fireworks' reliable, high-performance system with no rate limits.

    Available Serverless

    Run queries immediately, pay only for usage

    $1.35 / $5.40
    Per 1M Tokens (input/output)

    Metadata

    State
    Ready
    Created on
    5/28/2025
    Kind
    Base model
    Provider
    Deepseek
    Hugging Face
    DeepSeek-R1-0528

    Specification

    Calibrated
    Yes
    Mixture-of-Experts
    Yes
    Parameters
    671B

    Supported Functionality

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