GLM-5.3 vs GPT-6.1 Sol
Wins 0 of 7 areas
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Wins 5 of 7 areas
Reasoning · Facts · Math · Long documents · Following instructions
GPT-6.1 Sol is the stronger all-rounder.GLM-5.3 is cheaper.
Scores updated · 31 tests both models report · How we compare
Where each one wins
Tests won in each of the seven 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 thinking04GPT-6.1 Sol4 of 4 tests
- MathCompetition and research-level math03GPT-6.1 Sol3 of 3 tests
- FactsGetting facts right instead of making them up12GPT-6.1 Sol2 of 3 tests
- Long documentsFinding answers in very long texts01GPT-6.1 Sol1 of 1 test
- Following instructionsDoing exactly what it is asked01GPT-6.1 Sol1 of 1 test
- CodingWriting and fixing software22Even2 each
- AgentsCarrying out multi-step tasks on its own11Even1 each
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-5.3 costs 52% less for the same work.
The biggest differences
The three tests each model wins by the widest margin. Scores are out of 100.
Where GPT-6.1 Sol pulls ahead
- Extremely hard research-level math problemsFrontierMath Tier 4+70.7points ahead
- Short factual questions, answered correctlySimpleQA Verified+32.9points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+28.2points ahead
Where GLM-5.3 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+24.7points ahead
- Fixes real GitHub issues, working as an agentLiveBench · Agentic Coding+6.3points ahead
- Code for real scientific research problemsSciCode+4.8points ahead
Every test, side by side
All 31 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingEven
- LMArena · WebDevGPT-6.1 Sol by 121 rating points16221743+121 rating
- LiveBench · Agentic CodingGLM-5.3 by 6.360.954.5+6.3
- SciCodeGLM-5.3 by 4.85954.2+4.8
- LiveBench · CodingGPT-6.1 Sol by 1.47980.4+1.4
AgentsEven
- Terminal-Bench 4.0GPT-6.1 Sol by 14.241.956.1+14.2
- GDPValGLM-5.3 by 2.857.554.7+2.8
ReasoningGPT-6.1 Sol
- SimpleBenchGPT-6.1 Sol by 16.766.282.9+16.7
- CritPtGPT-6.1 Sol by 12.619.131.7+12.6
- Humanity's Last ExamGPT-6.1 Sol by 10.642.352.9+10.6
- LiveBench · ReasoningGPT-6.1 Sol by 6.885.892.6+6.8
FactsGPT-6.1 Sol
- SimpleQA VerifiedGPT-6.1 Sol by 32.94173.9+32.9
- AA-Omniscience · AccuracyGPT-6.1 Sol by 28.233.962.1+28.2
- AA-Omniscience · Non-hallucinationGLM-5.3 by 24.770.445.7+24.7
MathGPT-6.1 Sol
- FrontierMath Tier 4GPT-6.1 Sol by 70.729.3100+70.7
- FrontierMath Tiers 1-3 (v2)GPT-6.1 Sol by 24.968.893.7+24.9
- LiveBench · MathematicsGPT-6.1 Sol by 8.987.996.8+8.9
Following instructionsGPT-6.1 Sol
- LiveBench · Instruction FollowingGPT-6.1 Sol by 4.969.374.2+4.9
Other results13 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-Science 0.1GPT-6.1 Sol by 48.69.558.1+48.6
- HLE-DiamondGPT-6.1 Sol by 40.917.958.8+40.9
- CritPt v2 HardGPT-6.1 Sol by 3633.569.5+36
- AA-OmniscienceGPT-6.1 Sol by 27.214.341.5+27.2
- GDP (Surge AI)GPT-6.1 Sol by 19.811.231+19.8
- Terminal-Bench 4.0GPT-6.1 Sol by 16.441.858.2+16.4
- livebench_data_analysisGPT-6.1 Sol by 12.570.282.7+12.5
- HealthBench ProfessionalGPT-6.1 Sol by 12.352.865.1+12.3
- livebench_languageGPT-6.1 Sol by 10.279.990.1+10.2
- DeepSWE 1.1GPT-6.1 Sol by 8.366.975.2+8.3
- AA IntelligenceGPT-6.1 Sol by 744.851.8+7
- HealthBenchGPT-6.1 Sol by 454.558.5+4
- HiL-Bench (Tools-allowed)GPT-6.1 Sol by 458.362.3+4
Questions people ask
Which is better, GLM-5.3 or GPT-6.1 Sol?
GPT-6.1 Sol wins five of the seven areas where both have results: reasoning, facts, math, long documents and following instructions. GLM-5.3 wins none, but costs 52% less. They are level on coding and agents.
Which is better for coding?
Neither. They win 2 coding tests each of the 4 both models report.
Which is cheaper?
GLM-5.3 costs $1.40 per million input tokens and $4.40 per million output tokens; GPT-6.1 Sol costs $2.00 and $10.00. That makes GLM-5.3 about 52% cheaper for the same work.
How do you compare the two?
We use the 31 benchmark tests both models have published scores on. The verdict counts the 18 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 13 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.