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Alternatives

Best ChatGPT Alternatives in October 2026

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

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  1. Claude Fable 5.1 Anthropic

    1.7 points behind GPT-6 Astra, same price.

    Score 69.0, $20 per M tokens blended.Compare with GPT-6 Astra

  2. Gemini 3.8 Flash Google

    9.0 points behind GPT-6 Astra, 13.3× cheaper per token.

    Score 61.8, $1.50 per M tokens blended.Compare with GPT-6 Astra

  3. Kimi K3 Moonshot AI

    11.2 points behind GPT-6 Astra, 3.3× cheaper per token; open weights.

    Score 59.5, $6 per M tokens blended.Compare with GPT-6 Astra

  4. Grok 4.6 xAI

    13.9 points behind GPT-6 Astra, 6.7× cheaper per token.

    Score 56.9, $3 per M tokens blended.Compare with GPT-6 Astra

  5. Qwen3.8 Max Alibaba (Qwen)

    14.0 points behind GPT-6 Astra, 6.7× cheaper per token.

    Score 56.8, $3 per M tokens blended.Compare with GPT-6 Astra

  6. GLM-5.3 Z.ai (Zhipu)

    15.9 points behind GPT-6 Astra, 9.3× cheaper per token; open weights.

    Score 54.8, $2.15 per M tokens blended.Compare with GPT-6 Astra

  7. Muse Spark 1.3 Meta

    16.0 points behind GPT-6 Astra, 10.0× cheaper per token.

    Score 54.8, $2 per M tokens blended.Compare with GPT-6 Astra

  8. DeepSeek V4 Pro DeepSeek

    16.4 points behind GPT-6 Astra, 20.2× cheaper per token; open weights.

    Score 54.3, $0.99 per M tokens blended.Compare with GPT-6 Astra

More: Open-source, Cheaper, For coding

Frequently asked questions

What is the best alternative to ChatGPT?

The strongest alternative to ChatGPT as of October 2026 is Claude Fable 5.1 from Anthropic: 1.7 points behind GPT-6 Astra, same price. Compared against GPT-6 Astra, ChatGPT'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 GPT-6 Astra.