Noometry

Alternatives

Best Claude Alternatives in October 2026

The strongest alternative to Claude as of October 2026 is GPT-6 Astra from OpenAI: 1.7 points ahead of Claude Fable 5.1, same price. Compared against Claude Fable 5.1, Claude's current top model.

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  1. GPT-6 Astra OpenAI

    1.7 points ahead of Claude Fable 5.1, same price.

    Score 70.8, $20 per M tokens blended.Compare with Claude Fable 5.1

  2. Gemini 3.8 Flash Google

    7.3 points behind Claude Fable 5.1, 13.3× cheaper per token.

    Score 61.8, $1.50 per M tokens blended.Compare with Claude Fable 5.1

  3. Kimi K3 Moonshot AI

    9.5 points behind Claude Fable 5.1, 3.3× cheaper per token; open weights.

    Score 59.5, $6 per M tokens blended.Compare with Claude Fable 5.1

  4. Grok 4.6 xAI

    12.2 points behind Claude Fable 5.1, 6.7× cheaper per token.

    Score 56.9, $3 per M tokens blended.Compare with Claude Fable 5.1

  5. Qwen3.8 Max Alibaba (Qwen)

    12.3 points behind Claude Fable 5.1, 6.7× cheaper per token.

    Score 56.8, $3 per M tokens blended.Compare with Claude Fable 5.1

  6. GLM-5.3 Z.ai (Zhipu)

    14.2 points behind Claude Fable 5.1, 9.3× cheaper per token; open weights.

    Score 54.8, $2.15 per M tokens blended.Compare with Claude Fable 5.1

  7. Muse Spark 1.3 Meta

    14.3 points behind Claude Fable 5.1, 10.0× cheaper per token.

    Score 54.8, $2 per M tokens blended.Compare with Claude Fable 5.1

  8. DeepSeek V4 Pro DeepSeek

    14.7 points behind Claude Fable 5.1, 20.2× cheaper per token; open weights.

    Score 54.3, $0.99 per M tokens blended.Compare with Claude Fable 5.1

More: Open-source, Cheaper, For coding

Frequently asked questions

What is the best alternative to Claude?

The strongest alternative to Claude as of October 2026 is GPT-6 Astra from OpenAI: 1.7 points ahead of Claude Fable 5.1, same price. Compared against Claude Fable 5.1, Claude's current top model.

How were these alternatives chosen?

Each is the highest-ranked model from a different provider, compared on the Noometry Index against Claude Fable 5.1.