fable-5.1
Public AI IQ model profile with source-backed benchmark results and derived ranking context.
IQ
137
EQ
n/a
Effective Cost
$144
IQ Rank
#3
fable-5.1 API pricing — full price table, workload cost examples, and cheaper alternatives.
IQ Dimensions
| Dimension | IQ | Coverage |
|---|---|---|
| Abstract Reasoning | 129 | 2/3 |
| Mathematical Reasoning | 144 | 1/5 |
| Academic Reasoning | 147 | 6/6 |
| Programmatic Reasoning | 144 | 2/6 |
| Computer Use | 139 | 0/6 |
| Reliability | 121 | 2/7 |
Benchmark Results
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Frequently Asked Questions
- What is the IQ of fable-5.1?
- fable-5.1 has an estimated IQ of 137, which ranks #3 out of 131 public models on the AI IQ leaderboard. The score combines six equally weighted reasoning dimensions, each measured from source-backed benchmark results.
- How much does fable-5.1 cost?
- fable-5.1 costs $10.00 per million input tokens and $50.00 per million output tokens. Adjusted for how many tokens it actually consumes on real tasks, its effective cost works out to $144 per million input-plus-output tokens.
- Is fable-5.1 open source?
- No — fable-5.1 is a proprietary model. Its weights are not publicly available, so it is used through hosted APIs and products.
- When was fable-5.1 released?
- fable-5.1 was publicly released on September 1, 2026.
- How large is the context window of fable-5.1?
- fable-5.1 supports a context window of 1,000,000 tokens — the amount of text it can consider in a single request.
- How fast is fable-5.1?
- In independent measurements, fable-5.1 generates about 66 tokens per second.