SSyncDev

AI model comparison

Gemini Robotics-ER 1.6 Preview vs Step 3.5 Flash

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

Gemini Robotics-ER 1.6 Preview from Google lists 131.07K context, 65.54K maximum output, $1.00 input per 1M tokens, $5.00 output per 1M tokens. Step 3.5 Flash from StepFun lists 256K context, 256K maximum output, $0.10 input per 1M tokens, $0.30 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 Robotics-ER 1.6 Preview

Gemini Robotics-ER 1.6 Preview from Google: Vision-language model for embodied reasoning: spatial understanding, task planning, and physical-world agentic robotics.

Context
131.07K
Max output
65.54K
Input / 1M tokens
$1.00
Output / 1M tokens
$5.00

Accepts

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

Produces

  • Text output
Full model profilegithub.com ↗
VS

StepFun

Step 3.5 Flash

Step 3.5 Flash from StepFun: StepFun flash lane for quick multimodal reasoning and coding assistance.

Context
256K
Max output
256K
Input / 1M tokens
$0.10
Output / 1M tokens
$0.30

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.

Step 3.5 Flash

  • Context capacity: 256K
  • Maximum output: 256K
  • Input price: $0.10
  • Output price: $0.30

Context capacity

Higher listed limit

Gemini Robotics-ER 1.6 Preview:131.07K

Step 3.5 Flash:256K

Step 3.5 Flash

Maximum output

Higher listed limit

Gemini Robotics-ER 1.6 Preview:65.54K

Step 3.5 Flash:256K

Step 3.5 Flash

Input price

Lower listed token rate

Gemini Robotics-ER 1.6 Preview:$1.00

Step 3.5 Flash:$0.10

Step 3.5 Flash

Output price

Lower listed token rate

Gemini Robotics-ER 1.6 Preview:$5.00

Step 3.5 Flash:$0.30

Step 3.5 Flash

Specifications

Pricing, limits and capabilities

Specifications for Gemini Robotics-ER 1.6 Preview and Step 3.5 Flash. Higher limits and lower prices describe these figures only.
SpecificationGemini Robotics-ER 1.6 PreviewStep 3.5 Flash
ProviderGoogleStepFun
Listed pricing routeGoogleStepFun
Model familygemini—
Accepted inputstext, image, video, audiotext
Produced outputstexttext
Context window131.07K256KHigher
Max output65.54K256KHigher
Input price / 1M$1.00$0.10Lower
Output price / 1M$5.00$0.30Lower
Reasoning modeDocumentedDocumented
Tool callingDocumentedDocumented
Image inputDocumentedNot documented
Audio inputDocumentedNot documented
Structured outputDocumentedNot documented
LicenseProprietaryOpen weights

Workload guidance

Which model should you choose?

Consider Step 3.5 Flash if you need larger context or larger maximum output or a lower listed input rate or a lower listed output rate. Step 3.5 Flash offers downloadable weights; Gemini Robotics-ER 1.6 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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