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Machine Learning · head to head

Mistral AI vs Vellum

Mistral AI logo

Mistral AI

Machine Learning

European AI lab with open models, API platform and Le Chat assistant

From
On request
Free plan
No
Full reviewWebsite
Vellum logo

Vellum

AI

Personalized AI assistant with persistent memory and autonomous action-taking

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Vellum has a free tier, so it costs nothing to try first.
  • Each has a real cost: Mistral AI smaller model selection compared to OpenAI; Mistral Medium 3.5 significantly more expensive than competing mid-tier models; Vellum pricing varies significantly by computational tier, making budget planning difficult
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Mistral AI and Vellum actually diverge.

Attributes where Mistral AI and Vellum differ
AttributeMistral AIVellum
Starting priceOn requestFree
Pricing modelusage-basedFreemium with paid plans and pay-as-you-go credits
Free tierNoYes
PlatformsWeb, API, Self-hosted, Cloud (AWS, Google Cloud, Azure, SAP, IBM, Snowflake, NVIDIA, Outscale)Web, macOS, iOS, Slack, Telegram, Terminal
CategoryMachine LearningAI

Identical on both: 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 Mistral AI

Nothing recorded that Vellum does not also cover.

Only in Vellum

  • Persistent AI identity
  • Long-term memory
  • Email automation
  • Calendar management
  • Autonomous task execution
  • Multi-device synchronization
  • Custom plugins
  • Open-source deployment

What people use each for

The jobs each tool is most often brought in to do.

Mistral AI

  • EU-regulated workloads requiring data residency outside USnot Vellum
  • Custom model training and domain-specific fine-tuningnot Vellum
  • Multi-modal document processing with OCRnot Vellum
  • Autonomous development with Vibe for Codenot Vellum

Vellum

  • Personal productivity automation across email and calendarnot Mistral AI
  • CRM updates and pipeline managementnot Mistral AI
  • Expense report generation and managementnot Mistral AI
  • Document drafting and content creationnot Mistral AI
  • Meeting scheduling and calendar coordinationnot Mistral AI

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Mistral AI

  • Smaller model selection compared to OpenAI; Mistral Medium 3.5 significantly more expensive than competing mid-tier models
  • Batch processing only available at 50% discount, not free tier
  • No free tier; all API access requires payment

Vellum

  • Pricing varies significantly by computational tier, making budget planning difficult
  • Requires explicit permission for sensitive actions, limiting autonomy
  • Self-hosting option may intimidate non-technical users
  • Learning curve to develop customizations with plugins

Pricing, plan by plan

Mistral AI

On request
  • Mistral Small 4$0.15/per million input tokens
    • Multimodal
    • Multilingual
    • Apache 2.0 license
  • Mistral Small 4 output$0.6/per million output tokens
    • Same model
  • Mistral Large 3$0.5/per million input tokens
    • General-purpose flagship
  • Mistral Large 3 output$1.5/per million output tokens
    • Same model

Vellum

Free
  • FreeFree
    • Starter credits included
    • Basic features
  • Mighty$30/month
    • 1 vCPU, 2 GiB RAM
    • 10 GB storage
    • Included usage allowance
  • Super$100/month
    • 2.5 vCPU, 5 GiB RAM
    • 30 GB storage
    • Assistant email and subdomain
  • Ultra$200/month
    • 4 vCPU, 8 GiB RAM
    • 60 GB storage
    • Assistant email and subdomain

Which should you pick?

Choose Mistral AI if

  • You work on Web, API, Self-hosted, Cloud (AWS, Google Cloud, Azure, SAP, IBM, Snowflake, NVIDIA, Outscale).
Mistral AI review

Choose Vellum if

  • You need persistent ai identity.
  • You want to start without paying.
  • You work on Web, macOS, iOS, Slack, Telegram, Terminal.
  • You also want long-term memory.
Vellum review

Questions people ask

Is Mistral AI or Vellum better?
Neither clearly leads. Mistral AI starts at On request and Vellum at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mistral AI or Vellum?
Vellum has a free tier; the other does not. Paid plans start at On request for Mistral AI and Free for Vellum.
Does Mistral AI or Vellum run on more platforms?
Mistral AI runs on Web, API, Self-hosted, Cloud (AWS, Google Cloud, Azure, SAP, IBM, Snowflake, NVIDIA, Outscale). Vellum runs on Web, macOS, iOS, Slack, Telegram, Terminal.
Can I use Vellum for free?
Yes. Vellum has a free tier, so you can try it without paying. Mistral AI starts at On request.
What is Mistral AI best used for?
Mistral AI is most often used for eu-regulated workloads requiring data residency outside us, custom model training and domain-specific fine-tuning, multi-modal document processing with ocr, autonomous development with vibe for code. Of those, eu-regulated workloads requiring data residency outside us and custom model training and domain-specific fine-tuning are not what Vellum is typically brought in for.
What can Mistral AI do that Vellum cannot?
Vellum covers Persistent AI identity, Long-term memory, Email automation, Calendar management.

Answered from the vendors’ own pages

Mistral AI: How much does Mistral AI cost?

Mistral AI offers a free plan with 10 USD/month in API credits, Pro at 14.99 USD/month with 30 USD/month in credits, and Team at 24.99 USD per user/month with a 50 USD minimum.

Source
Vellum: How does Vellum protect my data privacy?

Vellum uses permission-based controls requiring explicit approval for sensitive actions. Data is encrypted and the option for self-hosting provides complete data control. Open-source deployment option allows hosting on your own infrastructure.

Source
Mistral AI: Is there a free plan?

Yes, Mistral AI includes a free plan with 10 USD/month in API credits, Studio access, and 100+ connectors for limited use.

Source
Vellum: Can I use Vellum for business team collaboration?

Vellum is primarily designed as a personal assistant with persistent identity. For team collaboration, platforms like Lindy offer better multi-user features with shared credit pools and Slack workspace integration.

Source
Mistral AI: What are the API costs?

API pricing is per million tokens for most models with input and output charged separately; OCR costs per 1,000 pages; speech models charged per minute.

Source
Vellum: What does the free tier include?

Vellum offers free starter credits to begin using the platform. Beyond that, it operates on a pay-as-you-go credit model with paid tiers starting at $30/month for increased computational resources and bundled credits.

Source
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