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GLM-5vsGPT-4.1

GLM-5 leads 4 of 4 shared benchmarks. GLM-5 is 2.4x cheaper per token. GPT-4.1 has the larger context window (1.0M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
4 – 0
GLM-5 leads
Cheaper per token
GLM-5
2.4x cheaper, input + output
Larger context
GPT-4.1
1.0M tokens
Provider uptime (30d)
— · 94.2446%
Z.ai · OpenAI
GLM-5
Z.ai
text
Context
200K
Max out
131K
Input /1M
$1
Output /1M
$3.2
Cached /1M
$0.2
Scores
8 · 7 core
GPT-4.1
OpenAI · released 2025-04-14
textvision
Context
1.0M
Max out
33K
Input /1M
$2
Output /1M
$8
Cached /1M
$0.5
Scores
10 · 8 core
Quality

Benchmark matrix

BenchmarkGLM-5GPT-4.1ΔEdge
Reported by both · 4
SWE-bench Verified77.8% 54.6% +23.2 ptGLM-5
GPQA Diamond87.8% epoch66.3% +21.5 ptGLM-5
OTIS Mock AIME 2024-2025 (Epoch AI run)80% epoch38.3% epoch+41.7 ptGLM-5
SWE-bench Verified (Epoch AI run)72.1% epoch48.5% epoch+23.6 ptGLM-5
Only GLM-5 reports · 4
AIME 202596.7% matharenanot reported
AIME 202696.7% matharenanot reported
LMArena Elo1446.3 not reported
Terminal-Bench 2.056.2% not reported
Only GPT-4.1 reports · 5
MMLUnot reported90.2%
AIME 2024not reported48.1%
FrontierMath Tiers 1-3 v2 (Epoch AI run)not reported6% epoch
SimpleQA Verifiednot reported31.1% epoch
Video-MME (long, no subtitles)not reported72%
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is GLM-5 minus GPT-4.1 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecGLM-5GPT-4.1Edge
Context window200K tokens1.0M tokensGPT-4.1
Max output131K tokens33K tokensGLM-5
Input price / 1M$1 $2 GLM-5
Output price / 1M$3.2 $8 GLM-5
Cached input / 1M$0.2 $0.5 GLM-5
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$4.2$10GLM-5
Modalitiestexttext · visionGPT-4.1
Released2025-04-14
Cited benchmark scores810
Reliability

Provider status

All providers
Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run GLM-5 and GPT-4.1 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.