Apriel-v1.6-15B-Thinker vs Claude Fable 5
Wins 1 of 5 areas
Following instructions
Wins 4 of 5 areas
Coding · Reasoning · Facts · Long documents
Claude Fable 5 is the stronger all-rounder.Apriel-v1.6-15B-Thinker is better at following instructions.
Scores updated · 12 tests both models report · How we compare
Where each one wins
Tests won in each of the five areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- ReasoningHard problems that need careful thinking03Claude Fable 53 of 3 tests
- CodingWriting and fixing software02Claude Fable 52 of 2 tests
- FactsGetting facts right instead of making them up02Claude Fable 52 of 2 tests
- Long documentsFinding answers in very long texts01Claude Fable 51 of 1 test
- Following instructionsDoing exactly what it is asked10Apriel-v1.6-15B-Thinker1 of 1 test
Long documents and following instructions rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Claude Fable 5 pulls ahead
- Hard command-line tasks in a real terminalTerminal-Bench Hard+48.5points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+48.4points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+44.7points ahead
Where Apriel-v1.6-15B-Thinker pulls ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+5.6points ahead
Every test, side by side
All 12 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Fable 5
- Terminal-Bench HardClaude Fable 5 by 48.514.462.9+48.5
- SciCodeClaude Fable 5 by 23.737.361+23.7
ReasoningClaude Fable 5
- Humanity's Last ExamClaude Fable 5 by 44.710.855.5+44.7
- CritPtClaude Fable 5 by 28.30.328.6+28.3
- GPQA DiamondClaude Fable 5 by 19.373.392.6+19.3
FactsClaude Fable 5
- AA-Omniscience · AccuracyClaude Fable 5 by 48.41765.3+48.4
- AA-Omniscience · Non-hallucinationClaude Fable 5 by 28.38.136.4+28.3
Following instructionsApriel-v1.6-15B-Thinker
- IFBenchApriel-v1.6-15B-Thinker by 5.669.163.5+5.6
Other results3 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- AA-OmniscienceClaude Fable 5 by 102.7-59.443.3+102.7
- AA IntelligenceClaude Fable 5 by 36.213.449.6+36.2
- τ²-Bench Telecom (AA run)Claude Fable 5 by 29.269.398.5+29.2
Questions people ask
Which is better, Apriel-v1.6-15B-Thinker or Claude Fable 5?
Claude Fable 5 wins four of the five areas where both have results: coding, reasoning, facts and long documents. Apriel-v1.6-15B-Thinker wins following instructions.
Which is better for coding?
Claude Fable 5. It wins 2 of the 2 coding tests both models report; Apriel-v1.6-15B-Thinker wins none.
How do you compare the two?
We use the 12 benchmark tests both models have published scores on. The verdict counts the 9 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 3 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.