Claude Fable 5.1 vs GPT-6 Astra.
model vs model · prices as of
GPT-6 Astra takes 2 of 5 rounds against Claude Fable 5.1. It is also the cheaper of the two to run, at $76 per million tokens against $80.
AnthropicClaude Fable 5.1
$80/M tokens
Anthropic list price, nothing below it is accounted for · $9 per 1,000 pages
1M context · tool calling · reads images
OpenAIwins 2 roundsGPT-6 Astra
$76/M tokens
cheapest we can explain, at Jiekou · $8.55 per 1,000 pages
1.1M context · tool calling · reads images
List price in (lower wins)
$10/M
$10/M
List price out (lower wins)
$50/M
$50/M
Cheapest we can explain (lower wins)
none below list
$76/M at Jiekou
Standard price (lower wins)
$80/M
$80/M
Cost per 1,000 pages (lower wins)
$9
$8.55
Context
1M tokens
1.1M tokens
Open weights
no
no
Tool calling
yes
yes
Structured output
yes
yes
Reads images
yes
yes
Reasoning
yes
yes
Released
1 Sept 2026
4 Sept 2026
Providers selling it
30
28
Price we measure against
the maker's own
the maker's own
Trains on your prompts (no is better)
no provider to check
not stated
Providers selling both · 22
Jiekou$80 / $76
302.AI$80 / $80
Azure AI Foundry$80 / $80
CrossModel$80 / $80
Eden AI$80 / $80
FastRouter$80 / $80
GitHub Copilot$80 / $80
Kilo Gateway$80 / $80
Claude Fable 5.1 then GPT-6 Astra, per million tokens · showing the 8 cheapest of 22
Go further
Add a third or fourth model, or switch the weighting, in the tool.
What moved in the last seven days
- Claude Fable 5.1
Nous Portal$8 / $40 $10 / $5025% dearer · - Claude Fable 5.1
Requesty$10 / $50 $11 / $5510% dearer · - GPT-6 AstraNous Portal$8 / $40 $10 / $5025% dearer ·
Frequently asked
- Which is cheaper, Claude Fable 5.1 or GPT-6 Astra?
- GPT-6 Astra, at $76 per million tokens against $80 for Claude Fable 5.1, three parts input to one part output, read on 16 Sept 2026.
- Where is each one cheapest?
- Claude Fable 5.1: nobody goes below the maker's own price with a reason we can point at, so $80 is the number to beat. GPT-6 Astra: $76 at Jiekou.
- Can I buy both from one provider?
- Yes. 22 providers sell both: Jiekou, 302.AI, Azure AI Foundry, CrossModel, Eden AI, FastRouter, and more. The cheapest of them for the two together is Jiekou.
- Which holds more context?
- GPT-6 Astra, at 1.1M tokens against 1M.
Prices exclude tax and are per million tokens, read 16 Sept 2026 from each provider's own catalog. The standard price blends three parts input to one part output; a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.