API prices / Compare

Claude Fable 5.1 vs GPT-6 Astra: price

Claude Fable 5.1 and GPT-6 Astra cost about the same for a typical chat workload.

ItemClaude Fable 5.1GPT-6 Astra
Input per 1M tokens$10.00$10.00
Output per 1M tokens$50.00$50.00
Cached input per 1M$0.25$1.00
1,000 chat messages1,500 tokens in, 500 out each$40.00$40.00
Summarize a 50-page PDF30,000 tokens in, 1,000 out$0.35$0.35
One coding-agent task60,000 tokens in, 4,000 out, no caching$0.80$0.80

GPT-6 Astra: 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 Astra in numbers

Both charge $50.00 per million output tokens. Input costs the same, $10.00 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 $0.80 on GPT-6 Astra. Claude Fable 5.1 accepts 1M tokens of context and GPT-6 Astra 1.05M tokens. Claude Fable 5.1 came out on September 1, 2026 and GPT-6 Astra on September 3, 2026.

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

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Frequently asked questions

Is Claude Fable 5.1 or GPT-6 Astra cheaper?

Claude Fable 5.1 and GPT-6 Astra cost about the same for a typical chat workload. Both charge $50.00 per million output tokens.

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

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 Astra pages, and read what users report in Discussions.