Claude Fable 5
Anthropic · released Jun 9, 2026
- Type
- Closed
- Input
- $10.00
- Output
- $50.00
- Cached
- $1.00
List price · per 1M tokens · Anthropic at 1M context · machine-readable source ↗
Our take
The case for it
- 1st of 168 on Arena Coding as of 25 Sep 2026 and 1st of 163 on Arena Maths as of 25 Sep 2026, both from human pairwise votes rather than a correctness rubric.
- 1st of 58 on LiveBench Language via Max effort as of 25 Jun 2026, with 4th of 58 on LiveBench Data Analysis and 5th of 58 on LiveBench Instruction Following on the same board and date.
- The request capacity is large enough that long documents need not be split up first, though reliable recall across all of it is unverified in our data.
- Text, image and file input with written output, so a screenshot or a document does not have to be described in words first.
The case against it
- We list no download for it, so using it means choosing a host and paying per token rather than running it yourself.
- No licence is supplied, so we cannot say what commercial use or redistribution is permitted.
- 17th of 55 on Arena Agent · Task outcome via High as of 25 Sep 2026, which records whether the session finished the task it set out to do.
How good is it?
A closed text model for everyday questions, writing, coding and multi-step agent work.
- getting answers to everyday questionsArena Text (overall) · 2nd of 168
- drafts, rewrites and editingArena Creative Writing · 2nd of 168
- writing and completing codeArena Coding · 1st of 168
- multi-step work it carries out for youArena Agent · 4th of 55
- calling tools to carry out requestsArena Agent · Tool use · 9th of 55
- changing course when you give new instructionsArena Agent · Steerability · 2nd of 55
- getting back on track after a step failsArena Agent · Recovery · 5th of 55
EverydayGeneral questions and everyday reasoning
Arena Text (overall)2nd of 168 · 1506
Also on this board: 1504 (Sep 25, 2026). Read the pair, not the higher one.
CodingWriting and fixing code on its own
Arena Coding1st of 168 · 1552
Also on this board: 1551 (Sep 25, 2026). Read the pair, not the higher one.
AgenticPlanning, calling tools, staying on task
Arena Agent4th of 55 · 0.083
WritingDrafting and rewriting prose
Arena Creative Writing2nd of 168 · 1504
Also on this board: 1501 (Sep 25, 2026). Read the pair, not the higher one.
Placings on Arena's agent boards, from live sessions people ran themselves. A model can lead on one of these and sit mid-field on the others.
Boards this model appears on that none of the ratings above are built on.
Every published score for this model20 scoresEvery figure we hold, from 20 boards, with who ran it and a link to the source — including the boards no rating above is built on.
Where to rent it
Prices checked 4 hours ago — each listing carries its own date.
Anthropic, direct
The lab is also the cheapest we hold. The strip above and this offer are the same one, so nothing on this page undercuts Anthropic on 1M of context.
- per 1M tokens
- $10.00 in / $50.00 out
- Context served
- 1M
- Throughput
- ~42 tok/s
| Provider | In / out per 1M tokens | Context | Throughput | Trains on prompts | Logs prompts | Zero retention |
|---|---|---|---|---|---|---|
| OpenRouterOpenRouter's own listing | $10.00 / $50.00checked 4 hours ago | 1M | not measured | Unknown | Unknown | Unknown |
| DeepInfraDirect | $10.00 / $50.00checked 4 hours ago | 1M | not measured | Unknown | Unknown | Unknown |
| Microsoft Azure AIThrough OpenRouter | $10.00 / $50.00checked 4 hours ago | 1M128K max reply | 49 tok/s | No | No | Unknown |
| Google Vertex AIglobalThrough OpenRouter | $10.00 / $50.00checked 4 hours ago | 1M128K max reply | 56 tok/s | No | No | Unknown |
| Claude Platform on AWSThrough OpenRouter | $10.00 / $50.00checked 4 hours ago | 1M128K max reply | 6 tok/s | No | Yes30 days | Unknown |
| AnthropicDirect | $10.00 / $50.00checked 4 hours ago | 1M128K max reply | 42 tok/s | No | Yes30 days | Unknown |
| Amazon BedrockThrough OpenRouter | $10.00 / $50.00checked 4 hours ago | 1M128K max reply | 38 tok/s | No | No | Unknown |
| Google Vertex AIeuropeThrough OpenRouter | $11.00 / $55.00checked 4 hours ago | 1M128K max reply | 59 tok/s | No | No | Unknown |
OpenRouter
DeepInfra
Microsoft Azure AI
Google Vertex AI
Amazon BedrockAcross the 8 listings we hold: 6 say they do not train on prompts, 0 say they do and 2 do not say. 0 appear in the zero-retention registry we check; the rest are unknown to us.
What each host's API supports
From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.
| Provider | Tool calling | JSON output | Strict schema |
|---|---|---|---|
| OpenRouterOpenRouter's own listing | ✓ | ✓ | ✓ |
| DeepInfraDirect | |||
| Microsoft Azure AIThrough OpenRouter | ✓ | ✓ | ✓ |
| Google Vertex AIglobalThrough OpenRouter | ✓ | ✓ | ✓ |
| Claude Platform on AWSThrough OpenRouter | ✓ | ✓ | ✓ |
| AnthropicDirect | ✓ | ✓ | ✓ |
| Amazon BedrockThrough OpenRouter | ✓ | ✓ | ✗ |
| Google Vertex AIeuropeThrough OpenRouter | ✓ | ✓ | ✓ |
Tool calling: 7 of 8 listings say yes, 1 publishes no parameter list. JSON output: 7 of 8 listings say yes, 1 publishes no parameter list. Strict schema: 6 of 8 listings say yes, 1 says no, 1 publishes no parameter list.
Models people weigh against Claude Fable 5
When we formed this view
Recent changes
Each date is the day we first saw the change, or the day the maker announced it.
What we do not know about this model yet
- 1 of 8 listings publishes no parameter list, so what its API accepts is unknown to us.
- Nothing we hold says whether an endpoint streams, so we do not show it either way.
- 2 of 8 listings do not say whether they train on prompts.
- We hold no batch or off-peak rate for any of its listings.
Licence and identifiers
What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.
Licence
We hold no licence record for this model, and no record of published weights either — so we can neither summarise its terms nor point you at the weights.
Identifiers
- Takes in, gives back
- Text, images and documents in, text out
- Catalogue slug
- anthropic-claude-fable-5