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AI model comparison

Ling 3.1 Flash vs Step 5 Preview

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

Step 5 Preview is a direct multimodal StepFun service, while Ling 3.1 Flash is a text reasoning model accessed through the documented AI Gateway route. Step 5 has the larger context and output allowance for these routes.

Side-by-sideCapabilities and practical differences

inclusionAI

Ling 3.1 Flash

Ling 3.1 Flash is inclusionAI’s hybrid reasoning model for coding and tool agents, available through a hosted AI Gateway route.

Context
262.14K
Max output
32.77K

Accepts

  • Text input

Produces

  • Text output
Full model profilevercel.com ↗
VS

StepFun

Step 5 Preview

Step 5 Preview is StepFun’s multimodal reasoning API for coding, research and tool workflows, with a one-million-token context.

Context
1M
Max output
65.54K
Input / 1M tokens
$1.00
Output / 1M tokens
$2.70

Accepts

  • Text input
  • Image input
  • Video input

Produces

  • Text output
Full model profileplatform.stepfun.ai ↗

At a glance

Key differences

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

Step 5 Preview

  • Context capacity: 1M
  • Maximum output: 65.54K

Context capacity

Higher listed limit

Ling 3.1 Flash:262.14K

Step 5 Preview:1M

Step 5 Preview

Maximum output

Higher listed limit

Ling 3.1 Flash:32.77K

Step 5 Preview:65.54K

Step 5 Preview

Specifications

Pricing, limits and capabilities

Specifications for Ling 3.1 Flash and Step 5 Preview. Higher limits and lower prices describe these figures only.
SpecificationLing 3.1 FlashStep 5 Preview
ProviderinclusionAIStepFun
Listed pricing routeinclusionAIStepFun
Model family——
Accepted inputstexttext, image, video
Produced outputstexttext
Context window262.14K1MHigher
Max output32.77K65.54KHigher
Input price / 1M—$1.00
Output price / 1M—$2.70
Reasoning modeDocumentedDocumented
Tool callingDocumentedDocumented
Image inputNot documentedDocumented
Audio inputNot documentedNot documented
Structured outputNot documentedDocumented
LicensePublisher API termsPublisher API terms

Workload guidance

Which model should you choose?

Use Step 5 for a job that needs images or video alongside text. Evaluate Ling 3.1 Flash for text-based coding and tool agents within its hosted limits. Temporary free access is an access condition, not a lasting price advantage. Test the complete agent workflow and confirm the chosen provider route.

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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