Model comparison
Claude 3 Haiku vs Claude Fable 5
Price history, scores and specs for both models, line by line. Every value shows where it came from and when we last confirmed it.
Anthropic
Claude 3 Haiku
Claude 3 Haiku is Anthropic's fastest and most compact model for near-instant responsiveness. Quick and accurate targeted performance.
Anthropic
Claude Fable 5
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding.
Quick take
Where each one leads
- Claude Fable 5 scores higher on the Artificial Analysis Intelligence Index: 49.6 to 5.6.
Each line comes from a checked value in the tables below. Pick on your workload: price and usage matter for high volume, context and scores for long documents and agent loops.
Price history
Prices side by side, day by day
- Claude 3 Haiku No price history checked yet
- Claude Fable 5
- Claude 3 Haiku No price history checked yet
- Claude Fable 5
Prices are the listed OpenRouter base rates in US dollars. A day we could not confirm is left out of the line, never filled in.
Price
What each one costs now
| Measure | Claude 3 Haiku | Claude Fable 5 |
|---|---|---|
| Input price | Not checked yet | $10.00 per million tokens |
| Output price | Not checked yet | $50.00 per million tokens |
Scores
Benchmarks, with source and date
| Measure | Claude 3 Haiku | Claude Fable 5 |
|---|---|---|
| Artificial Analysis Intelligence Index | 5.6 | 49.6 Leads |
| Artificial Analysis Coding Index | Not checked yet | 76.5 |
| Artificial Analysis Agentic Index | Not checked yet | 50.7 |
| LMArena text rating (Elo) | 1,195 | 1,492 Leads |
| LMArena web development rating (Elo) | Not checked yet | 1,625 |
| LMArena vision rating (Elo) | 950 | 1,326 Leads |
| Design Arena rating (Elo) | Not checked yet | 1,329 |
Specs
Context, modalities and tool use
| Measure | Claude 3 Haiku | Claude Fable 5 |
|---|---|---|
| Context window | Not checked yet | 1,000,000 tokens |
| Reads | Not checked yet | Text, Images, Files |
| Writes | Not checked yet | Text |
| Tool calling | Not checked yet | Yes |
| Reasoning mode | Not checked yet | Yes |
| Open weights | Not checked yet | No |
| Listed since | Not checked yet | 9 June 2026 |
Usage
How much each one is used
| Measure | Claude 3 Haiku | Claude Fable 5 |
|---|---|---|
| Tokens served on OpenRouter in a day | 3.9M (for 26 Sept 2026) | 4.6B (for 10 Nov 2026) |
| Requests on OpenRouter in a day | 1.1K (for 26 Sept 2026) | 63.1K (for 10 Nov 2026) |
| Tool calls on OpenRouter in a day | 81 (for 26 Sept 2026) | 23.1K (for 10 Nov 2026) |
| Token usage, last 7 days | Not checked yet | Down 54% on the week before (for 10 Nov 2026) |
- Claude 3 Haiku
- Claude Fable 5
How this works
One link, either order
This link stays the same whichever order you name the two models in, so you can share it as it is. A line appears only when at least one model has a value we confirmed from a source; values we have not confirmed are left out, never guessed. To add a third record of any type, use the open comparison. Read how we check facts.