Claude Fable 5 vs GLM-5-Turbo
Wins 4 of 6 areas
Coding · Agents · Reasoning · Long documents
Wins 1 of 6 areas
Following instructions
Claude Fable 5 is the stronger all-rounder.GLM-5-Turbo is cheaper and better at following instructions.
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 thinking30Claude Fable 53 of 3 tests
- CodingWriting and fixing software20Claude Fable 52 of 2 tests
- AgentsCarrying out multi-step tasks on its own10Claude Fable 51 of 1 test
- Long documentsFinding answers in very long texts10Claude Fable 51 of 1 test
- Following instructionsDoing exactly what it is asked01GLM-5-Turbo1 of 1 test
- FactsGetting facts right instead of making them up11Even1 each
Agents, 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.
GLM-5-Turbo costs 91% 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+36.9points ahead
- Hard command-line tasks in a real terminalTerminal-Bench Hard+29.6points ahead
- Research-level physics problemsCritPt+28.3points ahead
Where GLM-5-Turbo pulls ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+9.7points ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+1points 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 HardClaude Fable 5 by 29.662.933.3+29.6
- SciCodeClaude Fable 5 by 17.46143.6+17.4
ReasoningClaude Fable 5
- CritPtClaude Fable 5 by 28.328.60.3+28.3
- Humanity's Last ExamClaude Fable 5 by 27.755.527.8+27.7
- GPQA DiamondClaude Fable 5 by 7.992.684.7+7.9
FactsEven
- AA-Omniscience · AccuracyClaude Fable 5 by 36.965.328.4+36.9
- AA-Omniscience · Non-hallucinationGLM-5-Turbo by 136.437.4+1
Following instructionsGLM-5-Turbo
- IFBenchGLM-5-Turbo by 9.763.573.2+9.7
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.
- AA-OmniscienceClaude Fable 5 by 59.743.3-16.4+59.7
- Artificial Analysis Coding IndexClaude Fable 5 by 39.776.536.8+39.7
- AA IntelligenceClaude Fable 5 by 2349.626.6+23
- AA Agentic IndexGLM-5-Turbo by 15.15166.1+15.1
- τ²-Bench Telecom (AA run)tie98.598.5tie
Questions people ask
Which is better, Claude Fable 5 or GLM-5-Turbo?
Claude Fable 5 wins four of the six areas where both have results: coding, agents, reasoning and long documents. GLM-5-Turbo wins following instructions, and costs 91% less. They are level on facts.
Which is better for coding?
Claude Fable 5. It wins 2 of the 2 coding tests both models report; GLM-5-Turbo wins none.
Which is cheaper?
Claude Fable 5 costs $10.00 per million input tokens and $50.00 per million output tokens; GLM-5-Turbo costs $1.20 and $4.00. That makes GLM-5-Turbo about 91% 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 10 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.