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Claude Fable 5.1 vs GPT-6 Sol: price

GPT-6 Sol is 5.0× cheaper than Claude Fable 5.1 for a typical chat workload (1,500 tokens in, 500 out).

ItemClaude Fable 5.1GPT-6 Sol
Input per 1M tokens$10.00$2.00
Output per 1M tokens$50.00$10.00
Cached input per 1M$0.25$0.20
1,000 chat messages1,500 tokens in, 500 out each$40.00$8.00
Summarize a 50-page PDF30,000 tokens in, 1,000 out$0.35$0.07
One coding-agent task60,000 tokens in, 4,000 out, no caching$0.80$0.16

GPT-6 Sol: Prompts over 272K tokens: 2x input, 1.5x output.

List prices checked September 28, 2026. Price is half the story: see how people rate each one today.

Claude Fable 5.1 vs GPT-6 Sol in numbers

Output, usually the bigger part of the bill, costs $50.00 on Claude Fable 5.1 and $10.00 on GPT-6 Sol, so GPT-6 Sol is 5.0× cheaper there. Input costs $10.00 versus $2.00 per million tokens. For a coding-agent task (60,000 tokens in, 4,000 out) that is $0.80 on Claude Fable 5.1 and $0.16 on GPT-6 Sol. Claude Fable 5.1 accepts 1M tokens of context and GPT-6 Sol 1.05M tokens. Claude Fable 5.1 came out on September 1, 2026 and GPT-6 Sol on September 22, 2026.

Claude Fable 5.1 is made by Anthropic; GPT-6 Sol by OpenAI. Estimate your own bill for both in the cost calculator.

Which one feels dumber today?

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  2. GPT-6 SolOpenAI
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Frequently asked questions

Is Claude Fable 5.1 or GPT-6 Sol cheaper?

GPT-6 Sol is 5.0× cheaper than Claude Fable 5.1 for a typical chat workload (1,500 tokens in, 500 out). Output, usually the bigger part of the bill, costs $50.00 on Claude Fable 5.1 and $10.00 on GPT-6 Sol, so GPT-6 Sol is 5.0× cheaper there.

Which is better, Claude Fable 5.1 or GPT-6 Sol?

It depends on the task, and price is only part of it. Check how people rate each one today on the Claude Fable 5.1 and GPT-6 Sol pages, and read what users report in Discussions.