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Model Comparison

Moondream 3 Preview vs Kimi K3.1 ProWhich Is Better in 2026?

Moondream•MoonshotAI: Kimi K3.1 Pro logoMoonshot AI

Moondream 3 Preview vs Kimi K3.1 Pro: which should you choose in 2026?

Moondream 3 Preview (by Moondream) and Kimi K3.1 Pro (by Moonshot AI) are compared below. Here is how they stack up on benchmarks, price, and capabilities, and which one to pick in 2026.

There are not enough shared, protocol-compatible benchmark results to declare a performance leader.

Moondream 3 Preview is about 4.7× cheaper on a blended 3:1 input/output basis ($0.85 vs $4.00 per 1M tokens).

Kimi K3.1 Pro has the larger context window (1,048,576 tokens vs 32,000 tokens).

Choose Moondream 3 Preview if…

  • • lower blended API cost matters for your workload

Choose Kimi K3.1 Pro if…

  • • you work with longer documents, transcripts, or codebases

The benchmark count includes only results measured with a matching benchmark version and protocol. Arena scores are shown separately. Missing, preliminary, and incompatible data is not treated as a controlled win. Published point-score comparisons are labeled separately when protocol details are incomplete. For text-output models, the verdict also compares token pricing and context windows.

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Performance benchmarks

Every value links to its source. A dash means that no reviewed result is available for that exact model and protocol.

Moondream 3 Preview and Kimi K3.1 Pro benchmark results
BenchmarkMoondream 3 PreviewKimi K3.1 Pro
AutomationBench-AA

A 657-task benchmark of multi-step work across simulated SaaS applications in six business domains. The Artificial Analysis protocol reports a guardrail-aware score and is distinct from both the public Zapier split and the unrelated dynamic AutoBench framework.

Guardrail-aware score

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BrowseComp

A benchmark of difficult, verifiable information-seeking questions designed to measure an agent's ability to locate hard-to-find facts through web browsing.

Accuracy

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OSWorld-Verified

A verified computer-use benchmark in which multimodal agents operate desktop applications and are graded from the resulting environment state.

Mean task reward

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SWE-Bench Verified

A human-validated subset of real GitHub issues used to measure whether a coding agent can produce repository patches that resolve the associated tests.

Resolved

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Terminal-Bench 2.1

Version 2.1 of the benchmark for completing realistic tasks in terminal environments. Harness, resource limits, and attempt count are part of the protocol.

Mean task success

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AutoBench

A dynamic LLM evaluation framework in which models generate questions, answer them, and participate in reciprocal peer assessment. AutoBench is distinct from Zapier's AutomationBench.

Weighted peer-assessment score

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GPQA Diamond

The highest-quality subset of Graduate-Level Google-Proof Q&A, designed to test expert-level scientific reasoning in biology, physics, and chemistry.

Accuracy

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Humanity's Last Exam

A 2,500-question expert-level benchmark spanning dozens of academic fields. Tool-assisted and no-tools results are separate protocols and must not be merged.

Accuracy

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Benchmark sources

    Reviewed evidence last updated 2026-08-09.

    Pricing, capabilities, and model facts

    Moondream 3 Preview and Kimi K3.1 Pro model facts
    FeatureMoondream 3 PreviewKimi K3.1 Pro
    Context & model facts
    DeveloperMoondreamMoonshot AI
    API providerMoondreamMoonshotAI
    Input context32,000 tokens1,048,576 tokens
    Maximum output4,096 tokens943,718 tokens
    Released——
    Added to WritingmateOct 15, 2026Oct 23, 2026
    LicenseNot availableNot available
    Knowledge cutoff——
    Capabilities
    InputsText, ImageText, Image, Video
    OutputsTextText
    Provider endpoint accepts tool parametersNoYes
    ReasoningYesYes
    VisionYesYes
    Image GenerationNoNo
    Video GenerationNoNo
    API pricing
    Input (per 1M tokens)$0.30$2.00
    Output (per 1M tokens)$2.50$10.00
    Blended 3:1 input/output$0.85$4.00
    API performance
    p95 latencyNot measuredNot measured
    Output throughputNot measuredNot measured
    Writingmate shows API performance only when both models have enough observations from the same measurement window, prompt profile, and provider. Third-party latency values are not copied into this table.

    Data sources

    • Writingmate model catalog (pricing, limits, and availability)

    Catalog data last updated Oct 23, 2026.

    Why Pay for Multiple Subscriptions?

    Comparing Moondream 3 Preview from Moondream with Kimi K3.1 Pro from Moonshot AI? Instead of managing separate API keys and subscriptions, get both with Writingmate.

    Subscription-plan access for Moondream 3 Preview and Kimi K3.1 Pro
    PlanPriceMoondream 3 PreviewKimi K3.1 ProAI ImagesAI Video
    Writingmate Pro
    Most popular
    		$20/moIncludedIncludedNano Banana Pro, FLUX.2, DALL-E & moreVEO 3.1, Kling 3.0
    Writingmate Ultimate
    Power users
    		$60/moIncludedIncludedNano Banana Pro, FLUX.2, DALL-E & moreVEO 3.1, Kling 3.0
    View Plans & Pricing

    Moondream 3 Preview vs Kimi K3.1 Pro FAQ

    Which is better, Moondream 3 Preview or Kimi K3.1 Pro?

    There are not enough shared, protocol-compatible benchmark results to declare a performance leader. Moondream 3 Preview is about 4.7× cheaper on a blended 3:1 input/output basis ($0.85 vs $4.00 per 1M tokens). Kimi K3.1 Pro has the larger context window (1,048,576 tokens vs 32,000 tokens).

    Which model is cheaper to use through an API?

    Moondream 3 Preview is about 4.7× cheaper on a blended 3:1 input/output basis ($0.85 vs $4.00 per 1M tokens).

    Which model supports more context?

    Kimi K3.1 Pro has the larger context window (1,048,576 tokens vs 32,000 tokens).

    Can I switch between Moondream 3 Preview and Kimi K3.1 Pro?

    Yes. Use the model selector on this page to open any current Writingmate model comparison. You can also run the same prompt with both models in Writingmate.