AI Tools · head to head
Arize AI vs Runway

Arize AI
AI Tools
AI engineering platform for observability and evaluation of agents and LLM apps
- From
- Free
- Rated
- -

Runway
Social Media & Content
AI-powered creative tools for video and images
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Arize AI the free plan caps trace spans at 25,000 per month with only 15 days of retention.; Runway the free tier is 125 one-time credits rather than a monthly allowance, so it runs out and does not refill
- They diverge on capability: Arize AI covers End-to-end tracing, Runway covers Gen-2 video generation.
Where they differ
Only the attributes on which Arize AI and Runway actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Arize AI
- End-to-end tracing
- Evaluation framework
- Prompt testing and improvement
- Alyx AI engineering agent
- Custom dashboards
- Data warehouse integrations
Only in Runway
- Gen-2 video generation
- Green screen
- Inpainting
- Super resolution
- Motion tracking
- Adobe Premiere
- Final Cut Pro
- API access
What people use each for
The jobs each tool is most often brought in to do.
Arize AI
- Tracing and debugging production AI agentsnot Runway
- Running large-scale evaluations across traces and sessionsnot Runway
- Improving prompts before production rolloutnot Runway
- Storing and querying GenAI traces alongside a data warehousenot Runway
Runway
- Generating video clips from text or image promptsnot Arize AI
- Extending or editing existing footage with generative modelsnot Arize AI
- Removing objects and backgrounds from videonot Arize AI
- Storyboarding and previsualisation for productionnot Arize AI
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Arize AI
- The free plan caps trace spans at 25,000 per month with only 15 days of retention.
- Self-hosted deployment and Data Fabric integration are restricted to the custom-priced Enterprise tier.
- Pricing beyond the $50/month Pro plan requires a custom quote, making cost planning less transparent at scale.
- Advanced compliance features like HIPAA are only available on Enterprise.
Runway
- The free tier is 125 one-time credits rather than a monthly allowance, so it runs out and does not refill
- Outputs carry a watermark until the Standard plan at $12 a month
- Everything is metered in credits, and Gen-4.5 video costs 60 credits per 5 seconds, so a Standard plan covers roughly 125 short videos a year
- Only the Max plan at $76 a month rolls unused credits over, and only for one month
- The free tier gives a selection of models rather than the full set
Pricing, plan by plan
Arize AI
Free- AX FreeFree
- 25k trace spans/month
- 1 GB storage/month
- 15-day retention
- AX Pro$50/month
- 50k trace spans/month
- 10 GB storage/month
- 30-day retention
- AX Enterprise$undefined/mo
- Custom trace spans, storage, and retention
- SaaS or self-hosted deployment
- Managed agents and Data Fabric
Runway
Free- FreeFree
- 125 credits
- Basic tools
- 720p exports
- Standard$12/month
- 625 credits/month
- Gen-2 access
- 4K exports
- Pro$28/month
- 2250 credits/month
- All tools
- Priority processing
- Unlimited$76/month
- Unlimited generations
- Custom models
- API access
Which should you pick?
Choose Arize AI if
- You need end-to-end tracing.
- You want to start without paying.
- You work on web, api.
- You also want evaluation framework.
Choose Runway if
- You need gen-2 video generation.
- You want to start without paying.
- You also want green screen.
Questions people ask
- Is Arize AI or Runway better?
- Neither clearly leads. Arize AI starts at Free and Runway at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Arize AI or Runway?
- Arize AI starts at Free and Runway at Free.
- Does Arize AI or Runway run on more platforms?
- Arize AI runs on web, api. Runway runs on Web.
- Can I use Arize AI for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Arize AI best used for?
- Arize AI is most often used for tracing and debugging production ai agents, running large-scale evaluations across traces and sessions, improving prompts before production rollout, storing and querying genai traces alongside a data warehouse. Of those, tracing and debugging production ai agents and running large-scale evaluations across traces and sessions are not what Runway is typically brought in for.
- What can Arize AI do that Runway cannot?
- Arize AI covers End-to-end tracing, Evaluation framework, Prompt testing and improvement, Alyx AI engineering agent. Runway covers Gen-2 video generation, Green screen, Inpainting, Super resolution.
Answered from the vendors’ own pages
Arize AI: What does Arize AX cost?
Arize AX offers a free plan, a Pro plan at $50/month, and a custom-priced Enterprise plan, with pricing based on trace spans, storage, and retention needs.
SourceArize AI: Is there a free plan, and what are its limits?
The AX Free plan includes 25,000 trace spans and 1 GB of storage per month with 15-day retention, plus unlimited users, evaluations, and experiments.
SourceArize AI: What deployment options are available?
Free and Pro plans are SaaS-only, while Enterprise customers can choose SaaS or self-hosted deployment with custom SLAs.
SourceRelated pages
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- Arize AI vs Planoly
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- Arize AI vs Sked Social
- Arize AI vs Opus Clip
- Arize AI vs Sprinklr
- Arize AI vs Tailwind
- Arize AI vs Talkwalker
- Runway vs Pika
- Runway vs Anthropic API
- Runway vs D-ID
- Runway vs Fathom
- Runway vs Stable Diffusion
- Runway vs Perplexity
- Runway vs Black Forest Labs
- Runway vs Cartesia
- Runway vs Deepgram
- Runway vs Helicone
- Runway vs Ideogram
- Runway vs Jasper
- Runway vs PromptLayer
- Runway vs Resemble AI
- Runway vs Together AI
- Runway vs AI21 Labs
- Runway vs Copy.ai
- Runway vs HeyGen
- Runway vs Midjourney
- Runway vs DALL-E
- Runway vs Brandwatch
- Runway vs Mention
- Runway vs Planoly
- Runway vs Metricool
- Runway vs Sked Social
- Runway vs Opus Clip
- Runway vs Sprinklr
- Runway vs Tailwind
- Runway vs Talkwalker
