Agnes 2.5 Pro Beta vs Claude Fable 5
Wins 0 of 6 areas
—
Wins 4 of 6 areas
Coding · Agents · Reasoning · Images and charts
Claude Fable 5 is the stronger all-rounder.Agnes 2.5 Pro Beta is cheaper.
Scores updated · 15 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
- AgentsCarrying out multi-step tasks on its own02Claude Fable 52 of 2 tests
- Images and chartsUnderstanding pictures, charts and video01Claude Fable 51 of 1 test
- FactsGetting facts right instead of making them up11Even1 each
- Long documentsFinding answers in very long texts00Even0 each · 1 tie
Images and charts and long documents 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.
Agnes 2.5 Pro Beta costs 99% less for the same work.
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
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+48.6points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+18points ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+14.9points ahead
Where Agnes 2.5 Pro Beta pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+30.8points ahead
Every test, side by side
All 15 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Fable 5
- Terminal-Bench 2.1Claude Fable 5 by 14.969.784.6+14.9
- SciCodeClaude Fable 5 by 12.248.861+12.2
AgentsClaude Fable 5
- GDPValClaude Fable 5 by 14.141.455.5+14.1
- τ-Bench V3 · BankingClaude Fable 5 by 2.435.738.1+2.4
ReasoningClaude Fable 5
- Humanity's Last ExamClaude Fable 5 by 1837.555.5+18
- CritPtClaude Fable 5 by 12.915.728.6+12.9
- GPQA DiamondClaude Fable 5 by 2.190.592.6+2.1
FactsEven
- AA-Omniscience · AccuracyClaude Fable 5 by 48.616.865.3+48.6
- AA-Omniscience · Non-hallucinationAgnes 2.5 Pro Beta by 30.867.236.4+30.8
Images and chartsClaude Fable 5
- MMMU-ProClaude Fable 5 by 8.875.484.2+8.8
Other results4 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 53.8-10.543.3+53.8
- AA IntelligenceClaude Fable 5 by 14.435.249.6+14.4
- Artificial Analysis Coding IndexClaude Fable 5 by 14.262.376.5+14.2
- AA Agentic IndexClaude Fable 5 by 7.243.851+7.2
Questions people ask
Which is better, Agnes 2.5 Pro Beta or Claude Fable 5?
Claude Fable 5 wins four of the six areas where both have results: coding, agents, reasoning and images and charts. Agnes 2.5 Pro Beta wins none, but costs 99% less. They are level on facts and long documents.
Which is better for coding?
Claude Fable 5. It wins 2 of the 2 coding tests both models report; Agnes 2.5 Pro Beta wins none.
Which is cheaper?
Agnes 2.5 Pro Beta costs $0.10 per million input tokens and $0.30 per million output tokens; Claude Fable 5 costs $10.00 and $50.00. That makes Agnes 2.5 Pro Beta about 99% cheaper for the same work.
How do you compare the two?
We use the 15 benchmark tests both models have published scores on. The verdict counts the 11 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 4 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.