MODEL PROOF
Claude Fable 5.1 (batch)
NO LMARENA GENERAL SCORE
No LMArena general score is attached to this listing.
- Independent LMArena score
- No LMArena general score
- Context window
- 1M
- Maximum output
- 128K
- Input modalities
- text, image, file
- Output modalities
- text
- Published input price
- $5.00 / 1M tokens
- Published output price
- $25.00 / 1M tokens
- Pricing kind
- fixed
Inspect complete billing conditions and endpoint terms below.
Every price dimension · USD per million tokens
| Input | $5.00/M |
|---|---|
| Output | $25.00/M |
| Cached input | $0.125/M |
| Cache write | $6.25/M |
| Cache write 1h | $10.00/M |
| Reasoning | Unknown/M |
| Web search | $0.01/call |
Independent scores
No independent benchmark has measured this model. Unrated is not a score of zero.
Best rankings by task
- Full-stack apps #1 1320
- Godot games #1 1327
- Python pptxslides #1 1318
- Spreadsheet #1 1426
- Htmlslides #1 1394
- Web apps #3 1296
- ASCII art #4 1321
- Data visualisation #5 1344
Per-task Elo and rank from Design Arena, via OpenRouter’s model feed. The rank is the feed’s, and it counts models OpenRouter does not list.
Capability
| Context window | 1M |
|---|---|
| Max output | 128K |
| Input modes | text, image, file |
| Tool use | yes |
| Reasoning | always on |
| Open weights | no |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-11-05 |
| Quality data | unrated |
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
Questions this page answers
What does Claude Fable 5.1 (batch) cost?
$5.00/M in, $25.00/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.
Does Claude Fable 5.1 (batch) have an independent quality score?
Claude Fable 5.1 (batch) carries no LMArena score of its own; Claude Fable 5.1, the same model's standard listing, has an LMArena general score.
What beats Claude Fable 5.1 (batch)?
Claude Fable 5.1 (batch) carries no LMArena score of its own and is not compared here; Claude Fable 5.1, the same model's standard listing, has one.
Does this page use Artificial Analysis scores for Claude Fable 5.1 (batch)?
No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated.
Does a missing score mean Claude Fable 5.1 (batch) scored zero?
Unrated is not a score of zero.
MODEL MONUMENT