Noometry

Alternatives

Best Open-Source Grok Alternatives in October 2026

The strongest open-weight alternative to Grok as of October 2026 is Kimi K3 from Moonshot AI: 2.7 points ahead of Grok 4.6, 2.0× pricier; open weights. Compared against Grok 4.6, Grok's current top model.

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  1. Kimi K3 Moonshot AI

    2.7 points ahead of Grok 4.6, 2.0× pricier; open weights.

    Score 59.5, $6 per M tokens blended.Compare with Grok 4.6

  2. GLM-5.3 Z.ai (Zhipu)

    2.0 points behind Grok 4.6, 1.4× cheaper per token; open weights.

    Score 54.8, $2.15 per M tokens blended.Compare with Grok 4.6

  3. DeepSeek V4 Pro DeepSeek

    2.6 points behind Grok 4.6, 3.0× cheaper per token; open weights.

    Score 54.3, $0.99 per M tokens blended.Compare with Grok 4.6

  4. MiMo-V2.6-Pro Xiaomi

    6.6 points behind Grok 4.6, 5.5× cheaper per token; open weights.

    Score 50.3, $0.54 per M tokens blended.Compare with Grok 4.6

  5. Inkling-Small Thinking Machines Lab

    10.4 points behind Grok 4.6, 4.7× cheaper per token; open weights.

    Score 46.5, $0.64 per M tokens blended.Compare with Grok 4.6

  6. Qwen3.5 397B-A17B Alibaba (Qwen)

    10.8 points behind Grok 4.6, 2.2× cheaper per token; open weights.

    Score 46.0, $1.35 per M tokens blended.Compare with Grok 4.6

  7. Hy4 preview Tencent

    11.6 points behind Grok 4.6, 2.7× cheaper per token; open weights.

    Score 45.3, $1.13 per M tokens blended.Compare with Grok 4.6

  8. MiniMax-M3 MiniMax

    13.1 points behind Grok 4.6, 5.7× cheaper per token; open weights.

    Score 43.8, $0.52 per M tokens blended.Compare with Grok 4.6

More: All alternatives, Cheaper, For coding

Frequently asked questions

What is the best alternative to Grok?

The strongest open-weight alternative to Grok as of October 2026 is Kimi K3 from Moonshot AI: 2.7 points ahead of Grok 4.6, 2.0× pricier; open weights. Compared against Grok 4.6, Grok's current top model.

How were these alternatives chosen?

Each is the highest-ranked model from a different provider with downloadable weights, compared on the Noometry Index against Grok 4.6.