Apriel-v1.5-15B-Thinker vs Claude Fable 5
Wins 0 of 6 areas
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Wins 6 of 6 areas
Coding · Reasoning · Facts · Images and charts · Long documents · Following instructions
Claude Fable 5 is the stronger all-rounder.
Scores updated · 13 tests both models report · How we compare
Where each one wins
Tests won in each of the six 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
- Images and chartsUnderstanding pictures, charts and video01Claude Fable 51 of 1 test
- Long documentsFinding answers in very long texts01Claude Fable 51 of 1 test
- Following instructionsDoing exactly what it is asked01Claude Fable 51 of 1 test
Images and charts, 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
- Reasons across sets of long documentsAA-LCR+61points ahead
- Hard command-line tasks in a real terminalTerminal-Bench Hard+52.3points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+48.9points ahead
Where Apriel-v1.5-15B-Thinker pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 13 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 52.310.662.9+52.3
- SciCodeClaude Fable 5 by 26.234.861+26.2
ReasoningClaude Fable 5
- Humanity's Last ExamClaude Fable 5 by 43.412.155.5+43.4
- CritPtClaude Fable 5 by 27.51.128.6+27.5
- GPQA DiamondClaude Fable 5 by 21.371.392.6+21.3
FactsClaude Fable 5
- AA-Omniscience · AccuracyClaude Fable 5 by 48.916.465.3+48.9
- AA-Omniscience · Non-hallucinationClaude Fable 5 by 21.714.736.4+21.7
Images and chartsClaude Fable 5
- MMMU-ProClaude Fable 5 by 27.157.184.2+27.1
Following instructionsClaude Fable 5
- IFBenchClaude Fable 5 by 1.861.763.5+1.8
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 98.1-54.843.3+98.1
- AA IntelligenceClaude Fable 5 by 35.813.849.6+35.8
- τ²-Bench Telecom (AA run)Claude Fable 5 by 30.168.498.5+30.1
Questions people ask
Which is better, Apriel-v1.5-15B-Thinker or Claude Fable 5?
Claude Fable 5 wins all six areas where both have results: coding, reasoning, facts, images and charts, long documents and following instructions. Apriel-v1.5-15B-Thinker wins none.
Which is better for coding?
Claude Fable 5. It wins 2 of the 2 coding tests both models report; Apriel-v1.5-15B-Thinker wins none.
How do you compare the two?
We use the 13 benchmark tests both models have published scores on. The verdict counts the 10 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.