Name: GLM-5.1
Brand: Zhipu AI

GLM-5.1 is Zhipu AI's language model with a 205K context window and up to 203K output tokens, available from 11 providers, starting at $0.966 / 1M input and $3.04 / 1M output. Z AI's next-generation flagship agentic LLM with significantly stronger coding capabilities, vision support, and file input, achieving top performance on SWE-Bench.

Specifications
Canonical ID	`zhipu-glm-5-1`
Type	Language
Status	Active
Creator	Zhipu AI
Providers	Alibaba Qwen Azure AI Foundry DeepInfra Fireworks AI Nebius Novita OpenRouter Qwen AI Platform Qwencloud Vercel AI Gateway Z AI (Zhipu)
Context Window	205K tokens
Max Output	203K tokens
Input Modalities	ImagePDFText
Output Modalities	Text
Reasoning Efforts	default
Parameters	754B
HuggingFace Likes	1,449
HuggingFace Downloads (30d)	147,738
HuggingFace Downloads (all-time)	147,738
Release Date	2026-04-07 · 5 months ago
Deprecation Date	2027-07-01

Benchmarks
Intelligence Index	#80
Coding Index	#56
GPQA	#77
HLE	#73
IFBench	#22
Time to First Token	#440
SciCode	#91
LCR	#91
TerminalBench Hard	#34
TAU2	#12
Output TPS	#192

Capabilities

Input3/5

Text✓

Image✓

Audio·

Video·

PDF✓

Output1/5

Text✓

Image·

Audio·

Video·

Embedding·

Capabilities6/13

Reasoning✓

Adaptive Reasoning·

Function Calling✓

Parallel Function Calling✓

Structured Outputs✓

Native JSON Schema✓

Web Search·

URL Context·

Computer Use·

Code Execution·

File Search·

Prompt Caching✓

Assistant Prefill·

Pricing by Provider

US Dollar ($)

Per 1M tokens

Provider	Standard			Batch
Provider	Input $ / 1M	Output $ / 1M	Cache Read $ / 1M	Input $ / 1M	Output $ / 1M
Alibaba Qwen `glm-5.1`	$1.40	$4.40	$0.26	$0.7	$2.20
Azure AI Foundry `azure_ai/FW-GLM-5.1`	$1.54	$4.84	$0.286	—	—
DeepInfra `deepinfra/zai-org/GLM-5.1`	$1.05	$3.50	$0.205	—	—
Fireworks AI `fireworks_ai/glm-5p1`	$1.40	$4.40	$0.26	—	—
Nebius `zai-org/GLM-5.1`	$1.40	$4.40	N/A	—	—
Novita `novita/zai-org/glm-5.1`	$1.38	$4.40	$0.26	—	—
OpenRouter `z-ai/glm-5.1`	$0.966	$3.04	$0.179	—	—
Qwen AI Platform `qwen_ai_platform/glm-5.1`	$1.40	$4.40	$0.26	—	—
Qwencloud `qwencloud/glm-5.1`	$1.40	$4.40	$0.26	—	—
Vercel AI Gateway `zai/glm-5.1`	$1.40	$4.40	$0.26	—	—
Z AI (Zhipu) `zai/glm-5.1`	$1.40	$4.40	$0.26	—	—

Cost Calculator

US Dollar ($)

Preset:

Input tokens

Output tokens

Cache write tokens

Cache read tokens

Number of calls

Cheapest Instances to Run It

Cloud GPU instances that can host GLM-5.1, ranked by cheapest on-demand price. The model needs about 1809 GB of GPU memory at FP16 precision (estimated from its parameter count), so treat the fit as guidance rather than a guarantee.

All clouds

FP16 (full precision)

US Dollar ($)

Instance	Cloud	GPU	VRAM	Price	Cheapest region
p6-b300.48xlarge	AWS	8× B300	2149 GB	$142.42/hr

Versions

Version	Released	Context	Input / 1M	Output / 1M	Status
GLM-5.1	2026-04-07	205K	$0.966	$3.04	Current
GLM-5	2026-02-11	205K	$0.573	$1.92	Available

Model IDs

accounts/fireworks/models/glm-5p1

azure_ai/FW-GLM-5.1

dashscope/glm-5.1

deepinfra/zai-org/GLM-5.1

fireworks_ai/accounts/fireworks/models/glm-5p1

fireworks_ai/glm-5p1

glm-5-1

glm-5-1-non-reasoning

glm-5.1

huggingface-llm-glm-5-1-fp8

nebius/zai-org/GLM-5.1

novita/zai-org/glm-5.1

openrouter/z-ai/glm-5.1

qwen_ai_platform/glm-5.1

qwencloud/glm-5.1

z-ai/glm-5.1

zai-org/glm-5.1

zai-org/GLM-5.1

zai/glm-5.1

zhipu-glm-5-1

GLM-5.1

CapabilitiesAPIGET/api/v1/models/zhipu-glm-5-1

Pricing by ProviderAPIGET/api/v1/models/zhipu-glm-5-1/pricing

Cost CalculatorAPIGET/api/v1/models/zhipu-glm-5-1/pricing/calculate?input_tokens=1000000&output_tokens=500000

Cheapest Instances to Run ItAPIGET/api/v1/models/zhipu-glm-5-1/instances

VersionsAPIGET/api/v1/models?family=glm_moe_dsa

Model IDsAPIGET/api/v1/models/zhipu-glm-5-1

Capabilities

Pricing by Provider

Cost Calculator

Cheapest Instances to Run It

Versions

Model IDs