Model comparison

GLM-4.7 vs GPT-5.5 Pro

Data verified July 22, 2026

Head-to-head evidence from 5 shared benchmark results across 4 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

GLM-4.7

Z.AI

61.16/100

Margin

2.5pts

winning →

GPT-5.5 Pro

OpenAI

63.69/100

0 category wins3 category wins

Public leaderboard positions: GLM-4.7 #42 (Supported); GPT-5.5 Pro #38 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. GLM-4.7 and GPT-5.5 Pro share 5 comparable benchmark results. 3 of 8 categories are comparable. 25 results are unique to GLM-4.7; 2 to GPT-5.5 Pro.

Updated July 22, 2026

Shared results: 5
GLM-4.7 only: 25
GPT-5.5 Pro only: 2
Comparable categories: 3 / 8

Pick GPT-5.5 Pro if you want the stronger benchmark profile. GLM-4.7 only becomes the better choice if you want the cheaper token bill.

Confidence note. This is a partial-evidence comparison with 5 shared benchmark results across 4 evidence categories; 3 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

GPT-5.5 Pro has the cleaner BenchAlign overall profile here, landing at 63.69 versus 61.16. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

GPT-5.5 Pro's sharpest advantage is in mathematics, where it averages 48.1 against 1.8. The single biggest benchmark swing on the page is FrontierMath v2 (Tiers 1-3), 2.439% to 51.000%.

GPT-5.5 Pro is also the more expensive model on tokens at $30.00 input / $180.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for GLM-4.7. That is roughly Infinityx on output cost alone. GPT-5.5 Pro gives you the larger context window at 1M, compared with 200K for GLM-4.7.

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-4.7 and GPT-5.5 Pro
Category	GLM-4.7	Δ	GPT-5.5 Pro
Math	GLM-4.71.8	Margin→ 46.3	GPT-5.5 Pro48.1
Agentic	GLM-4.745.7	Margin→ 44.4	GPT-5.5 Pro90.1
Knowledge	GLM-4.751.8	Margin→ 5.4	GPT-5.5 Pro57.2
Coding	GLM-4.775.4	MarginNo overlap	GPT-5.5 ProNot measured

Decisive benchmark drivers

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

A · GLM-4.7B · GPT-5.5 Pro

FrontierMath v2 (Tiers 1-3)
Math
Source ↗
A 2.439%B 51.000%
Winner: GPT-5.5 ProΔ 48.6
FrontierMath v2 (Tiers 1-3): GLM-4.7 scored 2.439%; GPT-5.5 Pro scored 51.000%. GPT-5.5 Pro wins this benchmark.
FrontierMath v2 (Tier 4)
Math
Source ↗
A 0.000%B 39.600%
Winner: GPT-5.5 ProΔ 39.6
FrontierMath v2 (Tier 4): GLM-4.7 scored 0.000%; GPT-5.5 Pro scored 39.600%. GPT-5.5 Pro wins this benchmark.
BrowseComp
Agentic
Source ↗
A 52%B 90.1%
Winner: GPT-5.5 ProΔ 38.1
BrowseComp: GLM-4.7 scored 52%; GPT-5.5 Pro scored 90.1%. GPT-5.5 Pro wins this benchmark.
HLE
Knowledge
Source ↗
A 24.8%B 57.2%
Winner: GPT-5.5 ProΔ 32.4
HLE: GLM-4.7 scored 24.8%; GPT-5.5 Pro scored 57.2%. GPT-5.5 Pro wins this benchmark.

Operational comparison

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

Metric	GLM-4.7	GPT-5.5 Pro	Comparison
Input / output priceUSD per 1M tokens	GLM-4.7$0 input / $0 output	GPT-5.5 Pro$30 input / $180 output	GLM-4.7 has the lower combined listed price.
Generation speedtokens per second	GLM-4.782 tok/s	GPT-5.5 ProNot available	A complete speed comparison is not available.
First-answer latencyseconds to first token	GLM-4.71.10 s	GPT-5.5 ProNot available	A complete latency comparison is not available.
Context windowmaximum listed tokens	GLM-4.7200K	GPT-5.5 Pro1M	GPT-5.5 Pro lists the larger context window.

Benchmark Deep Dive

AgenticGPT-5.5 Pro wins

8 benchmarks

Benchmark	GLM-4.7	GPT-5.5 Pro	Result
Terminal-Bench 2.0Source	41%	—	Not comparable
BrowseCompSource	52%	90.1%	GPT-5.5 Pro leads
VITA-BenchSource	15.5%	—	Not comparable
AA Agentic IndexSource	25.4%	—	Not comparable
τ²-bench resultsSource	95.9%	—	Not comparable
Gert LabsSource	39.95%	—	Not comparable
GDPval-AASource	33.3%	—	Not comparable
GDPval-AASource	1165	—	Not comparable

Coding

6 benchmarks

Benchmark	GLM-4.7	GPT-5.5 Pro	Result
SWE-bench VerifiedSource	73.8%	—	Not comparable
LiveCodeBenchSource	84.9%	—	Not comparable
SWE-RebenchSource	58.7%	—	Not comparable
AA Coding IndexSource	45.3%	—	Not comparable
AA-SciCodeSource	45.1%	—	Not comparable
AA LiveCodeBenchSource	89.4%	—	Not comparable

Reasoning

2 benchmarks

Benchmark	GLM-4.7	GPT-5.5 Pro	Result
AA-LCRSource	64.0%	—	Not comparable
CritPtSource	1.7%	30.6%	GPT-5.5 Pro leads

KnowledgeGPT-5.5 Pro wins

10 benchmarks

Benchmark	GLM-4.7	GPT-5.5 Pro	Result
GPQASource	85.7%	—	Not comparable
MMLU-ProSource	84.3%	—	Not comparable
HLESource	24.8%	57.2%	GPT-5.5 Pro leads
Artificial Analysis Intelligence IndexSource	33.7%	—	Not comparable
AA-GPQA DiamondSource	85.9%	—	Not comparable
AA-HLESource	25.1%	—	Not comparable
AA-Omniscience IndexSource	-34.6%	—	Not comparable
AA-Omniscience AccuracySource	29.3%	—	Not comparable
AA-Omniscience Hallucination RateSource	90.3%	—	Not comparable
HLE w/o toolsSource	—	43.1%	Not comparable

MathGPT-5.5 Pro wins

4 benchmarks

Benchmark	GLM-4.7	GPT-5.5 Pro	Result
AIME 2025Source	95.7%	—	Not comparable
FrontierMath v2 (Tiers 1-3)Source	2.439%	51.000%	GPT-5.5 Pro leads
FrontierMath v2 (Tier 4)Source	0.000%	39.600%	GPT-5.5 Pro leads
FrontierMath (legacy)Source	—	52.4%	Not comparable

Multimodal

1 benchmarks

Benchmark	GLM-4.7	GPT-5.5 Pro	Result
Design Arena WebsiteSource	1255	—	Not comparable

Inst. Following

1 benchmarks

Benchmark	GLM-4.7	GPT-5.5 Pro	Result
AA-IFBenchSource	67.9%	—	Not comparable

Frequently Asked Questions (4)

Which is better, GLM-4.7 or GPT-5.5 Pro?

GPT-5.5 Pro is ahead on BenchLM's BenchAlign leaderboard, 63.69 to 61.16. The biggest single separator in this matchup is FrontierMath v2 (Tiers 1-3), where the scores are 2.439% and 51.000%.

Which is better for knowledge tasks, GLM-4.7 or GPT-5.5 Pro?

GPT-5.5 Pro has the edge for knowledge tasks in this comparison, averaging 57.2 versus 51.8. Inside this category, HLE is the benchmark that creates the most daylight between them.

Which is better for math, GLM-4.7 or GPT-5.5 Pro?

GPT-5.5 Pro has the edge for math in this comparison, averaging 48.1 versus 1.8. Inside this category, FrontierMath v2 (Tiers 1-3) is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, GLM-4.7 or GPT-5.5 Pro?

GPT-5.5 Pro has the edge for agentic tasks in this comparison, averaging 90.1 versus 45.7. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

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