Claude Fable 5 vs Gemma 3 270M
Wins 4 of 5 areas
Coding · Reasoning · Long documents · Following instructions
Wins 1 of 5 areas
Facts
Claude Fable 5 is the stronger all-rounder.Gemma 3 270M is better at facts.
Scores updated · 13 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 thinking30Claude Fable 53 of 3 tests
- CodingWriting and fixing software20Claude Fable 52 of 2 tests
- Long documentsFinding answers in very long texts10Claude Fable 51 of 1 test
- Following instructionsDoing exactly what it is asked10Claude Fable 51 of 1 test
- FactsGetting facts right instead of making them up01Gemma 3 270M1 of 1 test
Facts, 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
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+70.2points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+51.9points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+51.4points ahead
Where Gemma 3 270M pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+33.2points ahead
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 62.962.90+62.9
- SciCodeClaude Fable 5 by 61610+61
ReasoningClaude Fable 5
- GPQA DiamondClaude Fable 5 by 70.292.622.4+70.2
- Humanity's Last ExamClaude Fable 5 by 51.955.53.6+51.9
- CritPtClaude Fable 5 by 28.628.60+28.6
FactsGemma 3 270M
- AA-Omniscience · Non-hallucinationGemma 3 270M by 33.236.469.6+33.2
Following instructionsClaude Fable 5
- IFBenchClaude Fable 5 by 51.463.512.1+51.4
Other results5 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.
- τ²-Bench Telecom (AA run)Claude Fable 5 by 89.498.59.1+89.4
- Artificial Analysis Coding IndexClaude Fable 5 by 76.576.50+76.5
- AA-OmniscienceClaude Fable 5 by 72.643.3-29.3+72.6
- AA Agentic IndexClaude Fable 5 by 48513+48
- AA IntelligenceClaude Fable 5 by 44.549.65.1+44.5
Questions people ask
Which is better, Claude Fable 5 or Gemma 3 270M?
Claude Fable 5 wins four of the five areas where both have results: coding, reasoning, long documents and following instructions. Gemma 3 270M wins facts.
Which is better for coding?
Claude Fable 5. It wins 2 of the 2 coding tests both models report; Gemma 3 270M wins none.
How do you compare the two?
We use the 13 benchmark tests both models have published scores on. The verdict counts the 8 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 5 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.