Model comparison

GLM-4.6 vs o3

Data verified July 16, 2026

Head-to-head evidence from 14 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

GLM-4.6

Z.AI

55.02/100

Margin

7.2pts

← winning

OpenAI

47.84/100

0 category wins1 category wins

BenchAlign evidence: GLM-4.6 supported; o3 supported. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. GLM-4.6 and o3 share 14 comparable benchmark results. 1 of 8 categories are comparable. 1 result is unique to GLM-4.6; 3 to o3.

Updated July 16, 2026

Shared results: 14
GLM-4.6 only: 1
o3 only: 3
Comparable categories: 1 / 8

Pick o3 if you want the stronger benchmark profile. GLM-4.6 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Confidence note. This is a partial-evidence comparison with 14 shared benchmark results across 6 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

o3 is clearly ahead on the provisional aggregate, 54 to 46. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

o3's sharpest advantage is in mathematics, where it averages 14.5 against 3.4. The single biggest benchmark swing on the page is FrontierMath v2 (Tiers 1-3), 3.819% to 18.685%.

Category breakdown

Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.

Category scores and score margins for GLM-4.6 and o3
Category	GLM-4.6	Δ	o3
Math	GLM-4.63.4	Margin→ 11.1	o314.5

Decisive benchmark drivers

The largest measured benchmark gaps in this matchup, with exact reported values.

A · GLM-4.6B · o3

FrontierMath v2 (Tiers 1-3)
Math
Source ↗
A 3.819%B 18.685%
Winner: o3Δ 14.9
FrontierMath v2 (Tiers 1-3): GLM-4.6 scored 3.819%; o3 scored 18.685%. o3 wins this benchmark.
FrontierMath v2 (Tier 4)
Math
Source ↗
A 2.128%B 2.083%
Winner: GLM-4.6Δ 0
FrontierMath v2 (Tier 4): GLM-4.6 scored 2.128%; o3 scored 2.083%. GLM-4.6 wins this benchmark.

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

Metric	GLM-4.6	o3	Comparison
Input / output priceUSD per 1M tokens	GLM-4.6Not available	o3$2 input / $8 output	A complete price comparison is not available.
Generation speedtokens per second	GLM-4.6Not available	o3118 tok/s	A complete speed comparison is not available.
First-answer latencyseconds to first token	GLM-4.6Not available	o35.38 s	A complete latency comparison is not available.
Context windowmaximum listed tokens	GLM-4.6200K	o3200K	Listed context windows are equal.

Benchmark Deep Dive

Agentic

1 benchmarks

Benchmark	GLM-4.6	o3	Result
τ²-bench resultsSource	76.9%	80.7%	o3 leads

Coding

3 benchmarks

Benchmark	GLM-4.6	o3	Result
Vibe Code BenchSource	3.09%	—	Not comparable
Terminal-Bench HardSource	28.8%	37.1%	o3 leads
AA-SciCodeSource	33.1%	41.0%	o3 leads

Reasoning

2 benchmarks

Benchmark	GLM-4.6	o3	Result
AA-LCRSource	26.3%	69.3%	o3 leads
CritPtSource	0.0%	1.1%	o3 leads

Knowledge

6 benchmarks

Benchmark	GLM-4.6	o3	Result
Artificial Analysis Intelligence IndexSource	23.0%	30.4%	o3 leads
AA-GPQA DiamondSource	63.2%	82.7%	o3 leads
AA-HLESource	5.2%	20.0%	o3 leads
AA-Omniscience IndexSource	-31.6%	-15.3%	o3 leads
AA-Omniscience AccuracySource	20.8%	38.4%	o3 leads
AA-Omniscience Hallucination RateSource	66.1%	87.1%	GLM-4.6 leads

Matho3 wins

3 benchmarks

Benchmark	GLM-4.6	o3	Result
FrontierMath v2 (Tiers 1-3)Source	3.819%	18.685%	o3 leads
FrontierMath v2 (Tier 4)Source	2.128%	2.083%	GLM-4.6 leads
AA MATH-500Source	—	99.2%	Not comparable

Multimodal

2 benchmarks

Benchmark	GLM-4.6	o3	Result
AA-MMMU-ProSource	—	70.1%	Not comparable
Design Arena WebsiteSource	—	1071	Not comparable

Inst. Following

1 benchmarks

Benchmark	GLM-4.6	o3	Result
AA-IFBenchSource	36.7%	71.4%	o3 leads

Frequently Asked Questions (2)

Which is better, GLM-4.6 or o3?

o3 is ahead on BenchLM's provisional leaderboard, 54 to 46. The biggest single separator in this matchup is FrontierMath v2 (Tiers 1-3), where the scores are 3.819% and 18.685%.

Which is better for math, GLM-4.6 or o3?

o3 has the edge for math in this comparison, averaging 14.5 versus 3.4. Inside this category, FrontierMath v2 (Tiers 1-3) is the benchmark that creates the most daylight between them.

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Last updated: July 16, 2026

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