Kimi on Fireworks

The Kimi Series models are built by Moonshot AI, an Alibaba backed company founded by Zhilin Yang. They are known for pioneering open agentic intelligence with state-of-the-art performance in coding, document intelligence, and multi-turn agents. Their most capable models, including the latest multimodal Kimi K2.5, are available for developers to start building with on Fireworks with a single click today.

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Kimi Model Collection

Explore top models from Moonshot AI, including the Kimi K2.5 and Kimi K2 Thinking, that deliver state-of-the-art performance in complex agents, coding, and document intelligence.

Moonshot Innovations That Break the Mold

Advanced Reasoning for Agents and Coding

Kimi K2.5 Achieves SOTA quality in complex multi-agent reasoning and visual tasks, outperforming closed-source models like Opus 4.5 and Gemini 3 Pro

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Breakthrough Speed

•3X faster inference than closed-source models, delivering up to 201 Token/s
•4.5X faster inference than other providers

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Full Multimodal Control

Kimi K2.5 elevates your Agent use cases by delivering Moonshot’s multimodal power. It integrates image and video understanding with transparent 'thinking' modes, ensuring unmatched trust and visibility in every agentic workflow.

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MoE and Long Context Windows for Superior Agentic Intelligence

The Kimi K2 Series incorporate a Mixture-of-Experts (MoE) architecture that provides superior efficiency and higher performance. It also provides a large context window that maintains remarkable coherence for complex analysis and multi-turn flows, making it the optimized choice for long-range agentic workflows.

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Open Models Reach the Frontier

Open models like the Kimi series now deliver production-grade quality while drastically cutting costs. The true competitive advantage belongs to teams that can rapidly adopt these new capabilities and run them reliably, efficiently, and at scale.

Why choose Kimi on Fireworks?

Unmatched Speed That Powers Your Workflows

Consistently rank fastest speed on AA Benchmarks, achieving up to 201 tokens per second with our proprietary performance optimizations.

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Slash Costs Without Sacrificing Quality

1/10th the Cost of Closed Models: Migrate from expensive closed-source models while keeping output quality and speed high.

Day Zero Deployments Gets You to Market Faster

Fireworks is Moonshot's Preferred Launch Partner for Kimi K2.5. Start testing and deploying new Kimi models within hours of launch

CASE STUDY

Genspark Outperforms Closed Models: 12% Better Quality at 50% Lower Cost

Genspark leveraged Fireworks’ Reinforcement Fine-Tuning to outperform state-of-the-art closed-source models in just one month. By training Kimi, they achieved 12% better quality and a 33% increase in tool calls, all while slashing operational costs by 50%. This shift has enabled Genspark to deliver superior, cost-effective AI agents for deep research, documents, and complex web applications.

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50%

Cost Reduction