Claude Fable 5 vs Grok 4.6
Wins 7 of 8 areas
Coding · Reasoning · Facts · Images and charts · Math · Long documents · Following instructions
Wins 1 of 8 areas
Agents
Claude Fable 5 is the stronger all-rounder.Grok 4.6 is cheaper and better at agents.
Both rank among the ten best models we track in reasoning.
Scores updated · 33 tests both models report · How we compare
Where each one wins
Tests won in each of the eight areas we test. 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 thinking40Claude Fable 54 of 6 tests · 2 ties
- MathCompetition and research-level math30Claude Fable 53 of 3 tests
- CodingWriting and fixing software31Claude Fable 53 of 5 tests · 1 tie
- FactsGetting facts right instead of making them up21Claude Fable 52 of 3 tests
- Images and chartsUnderstanding pictures, charts and video10Claude Fable 51 of 1 test
- Long documentsFinding answers in very long texts10Claude Fable 51 of 1 test
- Following instructionsDoing exactly what it is asked10Claude Fable 51 of 1 test
- AgentsCarrying out multi-step tasks on its own13Grok 4.63 of 4 tests
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.
Grok 4.6 costs 87% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where Claude Fable 5 pulls ahead
- Extremely hard research-level math problemsFrontierMath Tier 4+58.5points ahead
- Complex command-line tasks across many fieldsTerminal-Bench 4.0+25.2points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+22.4points ahead
Where Grok 4.6 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+39.6points ahead
- Long professional tasks in banking, consulting and lawAA ApexAgents+14.2points ahead
- Customer-service tasks in a simulated bankτ-Bench V3 · Banking+5.2points ahead
Every test, side by side
All 33 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Fable 5
- LiveBench · CodingClaude Fable 5 by 9.28676.8+9.2
- SciCodeClaude Fable 5 by 86153+8
- LiveBench · Agentic CodingClaude Fable 5 by 5.262.257+5.2
- Terminal-Bench 2.1Grok 4.6 by 3.484.688+3.4
- LMArena · WebDevtie16241617tie
AgentsGrok 4.6
- Terminal-Bench 4.0Claude Fable 5 by 25.242.417.2+25.2
- AA ApexAgentsGrok 4.6 by 14.243.357.5+14.2
- τ-Bench V3 · BankingGrok 4.6 by 5.238.143.3+5.2
- GDPValGrok 4.6 by 1.755.657.3+1.7
ReasoningClaude Fable 5
- ARC-AGI-2Claude Fable 5 by 22.189.267.1+22.1
- Humanity's Last ExamClaude Fable 5 by 11.455.544.1+11.4
- CritPtClaude Fable 5 by 8.928.619.7+8.9
- SimpleBenchClaude Fable 5 by 681.975.9+6
- GPQA Diamondtie92.693.5tie
- LiveBench · Reasoningtie89.790.5tie
FactsClaude Fable 5
- AA-Omniscience · Non-hallucinationGrok 4.6 by 39.636.476+39.6
- AA-Omniscience · AccuracyClaude Fable 5 by 22.465.343+22.4
- SimpleQA VerifiedClaude Fable 5 by 21.870.748.9+21.8
Images and chartsClaude Fable 5
- LMArena · VisionClaude Fable 5 by 60 rating points13251265+60 rating
MathClaude Fable 5
- FrontierMath Tier 4Claude Fable 5 by 58.590.231.7+58.5
- FrontierMath Tiers 1-3 (v2)Claude Fable 5 by 218766+21
- LiveBench · MathematicsClaude Fable 5 by 3.49692.6+3.4
Following instructionsClaude Fable 5
- LiveBench · Instruction FollowingClaude Fable 5 by 3.975.871.9+3.9
Other results9 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.
- Terminal-Bench 4.0Claude Fable 5 by 24.244.520.3+24.2
- AA-OmniscienceClaude Fable 5 by 1443.329.3+14
- ARC-AGI-1Claude Fable 5 by 11.598.587+11.5
- livebench_languageClaude Fable 5 by 790.783.7+7
- livebench_data_analysisClaude Fable 5 by 6.680.573.9+6.6
- AA IntelligenceClaude Fable 5 by 5.449.644.2+5.4
- DeepSWE 1.1Claude Fable 5 by 4.17065.9+4.1
- AA Agentic IndexGrok 4.6 by 1.75152.7+1.7
- Artificial Analysis Coding Indextie76.575.9tie
Questions people ask
Which is better, Claude Fable 5 or Grok 4.6?
Claude Fable 5 wins seven of the eight areas we test: coding, reasoning, facts, images and charts, math, long documents and following instructions. Grok 4.6 wins agents, and costs 87% less.
Which is better for coding?
Claude Fable 5. It wins 3 of the 5 coding tests both models report; Grok 4.6 wins 1, and 1 is a tie.
Which is cheaper?
Claude Fable 5 costs $10.00 per million input tokens and $50.00 per million output tokens; Grok 4.6 costs $2.00 and $6.00. That makes Grok 4.6 about 87% cheaper for the same work.
How do you compare the two?
We use the 33 benchmark tests both models have published scores on. The verdict counts the 24 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 9 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.