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Z.ai: GLM 5.1

Z AI·Released 2026-04-07
Open Source203K ctx

About

GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on...

Pricing

Input

$0.97

per 1M tokens

Output

$3.04

per 1M tokens

Blended

$1.48

per 1M tokens

Cheaper than 33% of models. Median price is $0.67/1M tokens.

Cost Calculator

Tokens per day1M
100K100M

Daily

$1.48

Monthly

$44.50

vs. Similar Models

DeepSeek V4 FlashQ:+0.1
$0.10-94%
MiMo-V2-ProQ:+0.1
$1.50+1%
OpenAI: GPT-5.2-CodexQ:-0.1
$4.81+224%
OpenAI: GPT-5.4 MiniQ:-0.2
$1.69+14%

Performance

70

tokens/sec

Faster than 37% of models

0.90

seconds

Faster than 62% of models

55.31

seconds

Faster than 7% of models

Market Median

92 tok/s

24% slower

Median TTFT

1.13s

20% faster

Throughput/Dollar

47

tok/s per $/1M

Speed Comparison

GPT-5.2 (Non-reasoning)
69 tok/s-1%
GPT-5.6 Sol (xhigh)
69 tok/s-1%
Apriel-v1.6-15B-Thinker
69 tok/s-1%

Context Window

203K

tokens

Larger than 54% of models

Max Output

128K

tokens

63% of context

Benchmarks

MMLU-ProNot evaluated
GPQA Diamond
86.8%
HLE
28.0%
LiveCodeBenchNot evaluated
SciCode
43.8%
TerminalBench Hard
43.2%
MATH-500Not evaluated
AIMENot evaluated
AIME 2025Not evaluated
IFBench
76.3%
Long Context Recall
62.3%
Tau2
97.7%
Market AverageTop Score

Open Source

Quick Compare