SSyncDev

AI model comparison

Gemini Deep Research Preview vs GLM-5.1

Compare pricing, context limits, supported inputs and deployment options to choose a model for your workflow.

Gemini Deep Research Preview from Google lists 1.05M context, 65.54K maximum output, $2.00 input per 1M tokens, $12.00 output per 1M tokens. GLM-5.1 from Z.ai / Zhipu AI lists 200K context, 131.07K maximum output, $1.40 input per 1M tokens, $4.40 output per 1M tokens. Compare the inputs, outputs and deployment options below to see which fits your workflow.

Side-by-sideCapabilities and practical differences

Google

Gemini Deep Research Preview

Gemini Deep Research Preview from Google: Agentic model for autonomous multi-step research, synthesis, and cited reports.

Context
1.05M
Max output
65.54K
Input / 1M tokens
$2.00
Output / 1M tokens
$12.00

Accepts

  • Text input
  • Image input
  • Video input
  • Audio input
  • PDF input

Produces

  • Text output
  • Image output
Full model profilegithub.com ↗
VS

Z.ai / Zhipu AI

GLM-5.1

GLM-5.1 from Z.ai / Zhipu AI: Strong GLM coding model for agentic engineering, terminals, and repository generation.

Context
200K
Max output
131.07K
Input / 1M tokens
$1.40
Output / 1M tokens
$4.40

Accepts

  • Text input

Produces

  • Text output
Full model profilegithub.com ↗

At a glance

Key differences

Compare the available figures below, then try both models on the work you need to do.

Gemini Deep Research Preview

  • Context capacity: 1.05M

GLM-5.1

  • Maximum output: 131.07K
  • Input price: $1.40
  • Output price: $4.40

Context capacity

Higher listed limit

Gemini Deep Research Preview:1.05M

GLM-5.1:200K

Gemini Deep Research Preview

Maximum output

Higher listed limit

Gemini Deep Research Preview:65.54K

GLM-5.1:131.07K

GLM-5.1

Input price

Lower listed token rate

Gemini Deep Research Preview:$2.00

GLM-5.1:$1.40

GLM-5.1

Output price

Lower listed token rate

Gemini Deep Research Preview:$12.00

GLM-5.1:$4.40

GLM-5.1

Specifications

Pricing, limits and capabilities

Specifications for Gemini Deep Research Preview and GLM-5.1. Higher limits and lower prices describe these figures only.
SpecificationGemini Deep Research PreviewGLM-5.1
ProviderGoogleZ.ai / Zhipu AI
Listed pricing routeGoogleZ.ai / Zhipu AI
Model familygemini-proglm
Accepted inputstext, image, video, audio, pdftext
Produced outputstext, imagetext
Context window1.05MHigher200K
Max output65.54K131.07KHigher
Input price / 1M$2.00$1.40Lower
Output price / 1M$12.00$4.40Lower
Reasoning modeDocumentedDocumented
Tool callingDocumentedDocumented
Image inputDocumentedNot documented
Audio inputDocumentedNot documented
Structured outputNot documentedDocumented
LicenseProprietaryOpen weights

Workload guidance

Which model should you choose?

Consider Gemini Deep Research Preview if you need larger context. Consider GLM-5.1 if you need larger maximum output or a lower listed input rate or a lower listed output rate. GLM-5.1 offers downloadable weights; Gemini Deep Research Preview is listed as a proprietary model. Compare licence terms and operating costs before choosing a deployment. Test both on the same representative examples and judge the output against your acceptance criteria. Include tool failures, retries and the time to a completed task.

Documentation and model profiles

Explore each model’s features, API requirements and licence terms in the sources below.

Questions people ask

It brings together documented inputs and outputs, token limits, deployment terms and available pricing. When both models have source-linked, verified results on a shared benchmark, those results are shown with their individual sources. The comparison is a starting point for evaluating your own workload.

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