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Fireworks launches 3T-parameter Kimi K3 open model, rivaling top closed models

By PulseAugur Editorial · [7 sources] ·

Fireworks has launched Kimi K3, a 3-trillion parameter open model, on its inference and training platform. This model boasts a 1 million token context window, native vision capabilities, and reasoning that rivals top closed-source models from Anthropic and OpenAI. Kimi K3 is available at a significantly lower cost, with options for LoRA training on Fireworks to allow users to fine-tune the model for specific workloads. AI

IMPACT This launch offers a powerful open-source alternative to leading proprietary models, potentially lowering costs and increasing accessibility for advanced AI capabilities.

RANK_REASON Launch of a new frontier open model (Kimi K3) by Kimi Moonshot, with detailed technical specifications and performance claims.

Read on X — Fireworks (inference infra) →

AI-generated summary · Google Gemini · from 7 sources. How we write summaries →

Fireworks launches 3T-parameter Kimi K3 open model, rivaling top closed models

COVERAGE [7]

  1. X — Fireworks (inference infra) TIER_1 English(EN) · FireworksAI_HQ ·

    Start owning your own intelligence today with Kimi K3 on Fireworks.

    Start owning your own intelligence today with Kimi K3 on Fireworks. Serve it, fine-tune it, and put it into production. What are you waiting for → https://t.co/0yVyBZTAH1

  2. X — Fireworks (inference infra) TIER_1 English(EN) · FireworksAI_HQ ·

    Kimi K3 rivals Anthropic and OpenAI’s top models at a fraction of the cost.

    Kimi K3 rivals Anthropic and OpenAI’s top models at a fraction of the cost. $3 / 1M input tokens. $15 / 1M output. $0.30 / 1M cached You can now route your hardest reasoning to an open model without paying that frontier premium.

  3. X — Fireworks (inference infra) TIER_1 English(EN) · FireworksAI_HQ ·

    Big props @Kimi_Moonshot on the Kimi Delta Attention (KDA) architecture that delivers a 2.5X better scaling efficiency.

    Big props @Kimi_Moonshot on the Kimi Delta Attention (KDA) architecture that delivers a 2.5X better scaling efficiency. To unlock frontier performance, we put together: custom kernels for the KDA architecture, FP4 MoE kernels, and adapted decode kernels. Now it goes vroom.

  4. X — Fireworks (inference infra) TIER_1 English(EN) · FireworksAI_HQ ·

    Make Kimi K3 yours with LoRA training on Fireworks Training a model this massive used to be a big project.

    Make Kimi K3 yours with LoRA training on Fireworks Training a model this massive used to be a big project. With Fireworks Training, you can take the best open model in the world and efficiently tune it to your unique workloads, without paying frontier prices or touching a GPU h…

  5. X — Fireworks (inference infra) TIER_1 English(EN) · FireworksAI_HQ ·

    Kimi K3 is live on Fireworks. Day 0, inference and training. US-hosted, and zero data retention.

    Kimi K3 is live on Fireworks. Day 0, inference and training. US-hosted, and zero data retention. This is the first frontier open model in the 3 trillion parameter class. It sports 1M context, native vision, and reasoning that rivals the top closed models. Boom. https://t.co/ItU…

  6. Fireworks AI blog TIER_1 English(EN) ·

    Kimi K3 on Fireworks: Frontier Intelligence You Can Own

    Kimi K3 on Fireworks AI brings frontier-level intelligence to an open-weight 2.8-trillion parameter model, delivering matching performance to closed alternatives like Opus 5 at up to 5x lower cost per task. Hosted with US-based serverless endpoints and Zero Data Retention (ZDR), …

  7. Fireworks AI blog TIER_1 English(EN) ·

    Make Kimi K3 Yours: LoRA Training on Fireworks

    Fireworks AI now supports private preview access for Serverless LoRA Training on Kimi K3, the world’s first open-weight 2.8-trillion parameter model. Through low-cost, pay-per-token serverless fine-tuning, developers can customize Kimi K3 directly from a laptop—eliminating comple…

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