Glimmer Index
Plus $4/mo

GLM-5.2

Z.ai · Released Jun 13, 2026 · Open weights

Open flagship GLM for long-horizon coding agents and million-token context work

Strongest at
Science
Top 29% of the past year's models · 2 of 4 benchmarks
Price per 1M tokens
$1.4 / $4.4
input / output · Zai
Context window
1M
tokens in · 131.1K out
Since the last one
67 days
after GLM-5.1
Open in the timeline

Capability profile

Scored against 91 models released in the past year. 50 is the average model; further out is better.

This modelGLM-5.1Median of the past year
5090Median of the past yearCoding: 48 · Better than 27%Writing: 55 · Better than 44%Reading & documents: 47 · Better than 36%Reasoning: 49 · Better than 28%Math: 54 · Better than 44%Science: 67 · Top 29%Computer use: 58 · Better than 25%GLM-5.1: 55GLM-5.1: 56GLM-5.1: 54GLM-5.1: 51GLM-5.1: 62GLM-5.1: 55CodingWritingReadingReasoningMathScienceComputer use
Coding48−6.8Better than 27%
Writing55−0.9Better than 44%
Reading & documents47Better than 36% · 1 test
Reasoning49−4.7Better than 28%
Math54+3.2Better than 44%
Science67+5.2Top 29%
Computer use58+3.4Better than 25%

No results yet: Visual reasoning

Where these scores come from

Each capability combines the published benchmarks listed here, rescaled so 50 is the reference average and 15 points is one standard deviation. A hollow dot rests on a single benchmark.

Price against capability

The shaded corner holds anything better and cheaper. Prices blend input and output 3 to 1.

3 models from the past year score higher on Science for less: Gemini 3.8 Flash, GPT-6.1 Terra, DeepSeek V4.1 Flash 1017.

$0.1$0.3$1$3$10$30406080100GPT-6.1 Terra: 69, $2 per 1MDeepSeek V4.1 Flash 1017: 69, $0.52 per 1MMuse Spark Open: 66, $2 per 1MClaude Haiku 5.5: 65, $0.2 per 1MMistral Large 4: 65, $2.06 per 1MGemini 4 Argon: 71, $4 per 1MGPT-6.1 Sol: 70, $4 per 1MClaude Sonnet 5.5: 76, $4 per 1MGPT-6 Sol: 69, $4 per 1MGPT-6 Luna: 67, $0.2 per 1MClaude Opus 5.5: 108, $8 per 1MGrok 4.7: 61, $3 per 1MDeepSeek V4.1 Flash: 62, $0.21 per 1MGPT-6 Astra: 101, $20 per 1MGemini 3.8 Flash: 70, $1.5 per 1MClaude Fable 5.1: 90, $20 per 1MGLM-5.3-Flash: 67, $0.24 per 1MGLM-5.3: 60, $2.15 per 1MGemini 3.7 Flash: 54, $1.5 per 1MDeepSeek V4 Pro 0813: 66, $0.99 per 1MQwen3.8 2.4T A95B: 70, $3 per 1MGrok 4.6: 58, $3 per 1MMuse Spark 1.2: 60, $2 per 1MQwen3.8 Max: 68, $3 per 1MDeepSeek V4 Flash 0731: 64, $0.15 per 1MClaude Opus 5: 79, $10 per 1MGemini 3.6 Flash: 63, $1.5 per 1MGemini 3.5 Flash Lite: 53, $0.85 per 1MKimi K3: 62, $6 per 1MQwen3.7 Flash: 62, $0.055 per 1MGPT-5.6 Terra: 61, $4.5 per 1MGPT-5.6 Sol: 73, $8 per 1MGPT-5.6 Luna: 54, $0.45 per 1MGrok 4.5: 59, $3 per 1MClaude Sonnet 5: 66, $4 per 1MKimi K2.7 Code: 60, $1.71 per 1MClaude Fable 5: 71, $20 per 1MQwen3.7 Plus: 65, $0.7 per 1MClaude Opus 4.8: 63, $10 per 1MQwen3.7 Max: 67, $3.75 per 1MGemini 3.5 Flash: 65, $3.38 per 1MGPT-5.5 Instant: 62, $11.2 per 1MDeepSeek V4 Pro: 51, $1.19 per 1MDeepSeek V4 Flash: 49, $0.18 per 1MGPT-5.5 Pro: 69, $67.5 per 1MGPT-5.5: 73, $11.2 per 1MQwen3.6 27B: 64, $1.35 per 1MKimi K2.6: 62, $1.71 per 1MGrok 4.3: 52, $1.56 per 1MClaude Opus 4.7: 70, $10 per 1MQwen3.6 35B-A3B: 52, $0.84 per 1MGemma 4 31B IT: 57, $0.25 per 1MGPT-5.4 nano: 56, $0.46 per 1MGPT-5.4 mini: 62, $1.69 per 1MNemotron 3 Super 120B A12B: 44, $0.82 per 1MGPT-5.4 Pro: 75, $67.5 per 1MGPT-5.4: 71, $5.62 per 1MGemini 3.1 Flash Lite Preview: 54, $0.56 per 1MGemini 3.1 Flash Lite: 50, $0.56 per 1MQwen3.5 Flash: 62, $0.18 per 1MQwen3.5 9B: 59, $0.19 per 1MQwen3.5 35B-A3B: 62, $0.69 per 1MQwen3.5 27B: 45, $0.82 per 1MGemini 3.1 Pro Preview: 73, $4.5 per 1MClaude Sonnet 4.6: 63, $6 per 1MQwen3.5 Plus: 63, $0.9 per 1MQwen3.5 397B-A17B: 64, $1.35 per 1MGLM-5: 58, $1.55 per 1MGPT-5.3 Codex: 72, $4.81 per 1MClaude Opus 4.6: 69, $10 per 1MQwen3 Coder Next: 42, $0.29 per 1MKimi K2.5: 53, $1 per 1MGLM-4.7: 62, $1 per 1MGemini 3 Flash Preview: 63, $1.12 per 1MGPT-5.2: 66, $4.81 per 1MDeepSeek V3.2: 62, $0.32 per 1MClaude Opus 4.5: 60, $10 per 1MGPT-5.1: 61, $3.44 per 1MKimi K2 Thinking: 47, $1.07 per 1MGLM-5.1: 62, $2.15 per 1MGLM-5.2: 67, $2.15 per 1MGLM-5.2Price per 1M tokens →↑ Science$0.1$1$10406080100GPT-6.1 Terra: 69, $2 per 1MDeepSeek V4.1 Flash 1017: 69, $0.52 per 1MMuse Spark Open: 66, $2 per 1MClaude Haiku 5.5: 65, $0.2 per 1MMistral Large 4: 65, $2.06 per 1MGemini 4 Argon: 71, $4 per 1MGPT-6.1 Sol: 70, $4 per 1MClaude Sonnet 5.5: 76, $4 per 1MGPT-6 Sol: 69, $4 per 1MGPT-6 Luna: 67, $0.2 per 1MClaude Opus 5.5: 108, $8 per 1MGrok 4.7: 61, $3 per 1MDeepSeek V4.1 Flash: 62, $0.21 per 1MGPT-6 Astra: 101, $20 per 1MGemini 3.8 Flash: 70, $1.5 per 1MClaude Fable 5.1: 90, $20 per 1MGLM-5.3-Flash: 67, $0.24 per 1MGLM-5.3: 60, $2.15 per 1MGemini 3.7 Flash: 54, $1.5 per 1MDeepSeek V4 Pro 0813: 66, $0.99 per 1MQwen3.8 2.4T A95B: 70, $3 per 1MGrok 4.6: 58, $3 per 1MMuse Spark 1.2: 60, $2 per 1MQwen3.8 Max: 68, $3 per 1MDeepSeek V4 Flash 0731: 64, $0.15 per 1MClaude Opus 5: 79, $10 per 1MGemini 3.6 Flash: 63, $1.5 per 1MGemini 3.5 Flash Lite: 53, $0.85 per 1MKimi K3: 62, $6 per 1MQwen3.7 Flash: 62, $0.055 per 1MGPT-5.6 Terra: 61, $4.5 per 1MGPT-5.6 Sol: 73, $8 per 1MGPT-5.6 Luna: 54, $0.45 per 1MGrok 4.5: 59, $3 per 1MClaude Sonnet 5: 66, $4 per 1MKimi K2.7 Code: 60, $1.71 per 1MClaude Fable 5: 71, $20 per 1MQwen3.7 Plus: 65, $0.7 per 1MClaude Opus 4.8: 63, $10 per 1MQwen3.7 Max: 67, $3.75 per 1MGemini 3.5 Flash: 65, $3.38 per 1MGPT-5.5 Instant: 62, $11.2 per 1MDeepSeek V4 Pro: 51, $1.19 per 1MDeepSeek V4 Flash: 49, $0.18 per 1MGPT-5.5 Pro: 69, $67.5 per 1MGPT-5.5: 73, $11.2 per 1MQwen3.6 27B: 64, $1.35 per 1MKimi K2.6: 62, $1.71 per 1MGrok 4.3: 52, $1.56 per 1MClaude Opus 4.7: 70, $10 per 1MQwen3.6 35B-A3B: 52, $0.84 per 1MGemma 4 31B IT: 57, $0.25 per 1MGPT-5.4 nano: 56, $0.46 per 1MGPT-5.4 mini: 62, $1.69 per 1MNemotron 3 Super 120B A12B: 44, $0.82 per 1MGPT-5.4 Pro: 75, $67.5 per 1MGPT-5.4: 71, $5.62 per 1MGemini 3.1 Flash Lite Preview: 54, $0.56 per 1MGemini 3.1 Flash Lite: 50, $0.56 per 1MQwen3.5 Flash: 62, $0.18 per 1MQwen3.5 9B: 59, $0.19 per 1MQwen3.5 35B-A3B: 62, $0.69 per 1MQwen3.5 27B: 45, $0.82 per 1MGemini 3.1 Pro Preview: 73, $4.5 per 1MClaude Sonnet 4.6: 63, $6 per 1MQwen3.5 Plus: 63, $0.9 per 1MQwen3.5 397B-A17B: 64, $1.35 per 1MGLM-5: 58, $1.55 per 1MGPT-5.3 Codex: 72, $4.81 per 1MClaude Opus 4.6: 69, $10 per 1MQwen3 Coder Next: 42, $0.29 per 1MKimi K2.5: 53, $1 per 1MGLM-4.7: 62, $1 per 1MGemini 3 Flash Preview: 63, $1.12 per 1MGPT-5.2: 66, $4.81 per 1MDeepSeek V3.2: 62, $0.32 per 1MClaude Opus 4.5: 60, $10 per 1MGPT-5.1: 61, $3.44 per 1MKimi K2 Thinking: 47, $1.07 per 1MGLM-5.1: 62, $2.15 per 1MGLM-5.2: 67, $2.15 per 1MGLM-5.2Price per 1M tokens →↑ Science

Zai $1.4 / $4.4 · OpenRouter $0.03 / $7 · Cached input $0.26

Since GLM-5.1

9 releases in the GLM-5.3 line.

GLM-4.6Sep 30, 202569dGLM-4.6VDec 8, 202514dGLM-4.7Dec 22, 202552dGLM-5Feb 12, 202654dGLM-5.1Apr 7, 202667dGLM-5.2Jun 13, 202662dGLM-5.3Aug 14, 2026
Released67 days later
Price in / out$1.4 / $4.4same price
Context1M5.0×
Coding48−6.8
Writing55−0.9
Reasoning49−4.7
Math54+3.2
Science67+5.2
Computer use58+3.4

A newer release is out: GLM-5.3.

ECI STANDING#52 of 270
SCORE151.94149.99–154.1 CI
FRONTIER LAGLaunched 6.9 months behindScores about what Gemini 3 Pro did in November 2025.
SCORES LIKE THESE MODELS
Grok 4.20xAI · Feb 2026152.11
Muse SparkMeta AI · Apr 2026152.03
Gemini 3 FlashGoogle DeepMind · Dec 2025151.88
Qwen 3.8 27BAlibaba · Aug 2026151.69
Full Epoch Capabilities Index ranking ↗

Epoch benchmark boards

Best result on each board it has run. The tick marks the leader.

GPQA diamond
92%#27 of 234
WeirdML
70%#21 of 141
SWE-Bench verified
79%#5 of 32
DTBench
94%#31 of 179
SimpleBench
59%#31 of 89
OTIS Mock AIME 2024-2025
86%#77 of 216
ARC-AGI
77%#44 of 107
ARC-AGI-2
23%#46 of 103
11 more boards
Surface Evolver Bench
56%#12 of 26
FrontierMath-Tiers-1-3-v2-Private
59%#42 of 90
ProofBench
35%#41 of 81
FrontierMath-Tier-4-v2-Private
29%#38 of 72
PostTrainBench
32%#6 of 11
Mystery Game Puzzles
19%#50 of 88
Chess Puzzles
22%#57 of 93
APEX-Agents
45%#34 of 51
SimpleQA Verified
34%#57 of 85
FrontierCode
24%#37 of 46
EBR-bench
10%#23 of 28

Z.ai's past year

12 release days in the past year, about one every 30 days. The next is expected around Nov 21, 2026. Forecasts ↗

NovDecJanFebMarAprMayJunJulAugSepOctNov

Specifications

RELEASE DATEJun 13, 2026
WEIGHTSOpen weights
CONTEXT WINDOW1M
MAX OUTPUT131.1K
REASONINGNot listed
TOOL CALLINGNot listed
INPUTStext
OUTPUTStext

Models.dev record ↗

Specifications and prices from Models.dev; availability and limits may differ by provider. Benchmarks from Epoch AI (CC BY 4.0), LiveBench and the other sources named above.