Flint vs Arena
Plans, free access, limits and intended use side by side, taken from each vendor’s own pages. No score and no winner: the facts show where the two differ.
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AI tutor and activity builder for K-12 schools, free for up to 80 users
Free by the terms today, with no published price list
- Free access
- Flint: Free access
- Arena: Free access
- Paid from
- Flint: USD 3,000 per year
- Arena: No fixed price listed
- Plans listed
- Flint: 5
- Arena: 1
- Public API
- Flint: Not confirmed
- Arena: Not confirmed
Where Flint and Arena differ
- Pricing checkPrices confirmed for Flint; prices not confirmed for Arena.
- PlansFlint lists 5 plans and Arena lists 1.
Head to head
Each value from the tool’s profile and the vendor’s own pages
| Flint | Fact | Arena |
|---|---|---|
| Access and price | ||
| Free access availableFree · USD 0 | Free accessSame | Free access available |
| USD 3,000 per yearSmall pilot | Lowest listed paid plan | No fixed price listed |
| Free up to 80 users; schools from $3,000/year | Pricing model | Free per Terms of Use; no price list |
| 5 | Plans listedDiffers | 1 |
| Not confirmed | Public API | Not confirmed |
| Not confirmed | Card to start | Not confirmed |
| Not confirmed | Open source | Not confirmed |
| What it is for | ||
| K-12 schools piloting an AI tutor that teachers can monitor | Built for | Comparing AI model answers by voting, without a paid plan |
| Research & sources | CategorySame | Research & sources |
| Platforms |
|
| Works with |
|
| How current | ||
| Profile sources checked | ||
| Prices confirmed · Oct 6, 2026 | Pricing checkDiffers | Prices not confirmed · Sep 30, 2026 |
Official source check for both tools. No hands-on testing and no score: “Differs” marks a documented difference, not a better tool.
Plans and prices
Flint
Prices confirmed · Oct 6, 2026- FreeUSD 0
- Small pilotUSD 3,000 per year
- Smaller schoolUSD 4,000 per year
- Midsize schoolUSD 6,500 per year
- Large schoolCustom
Arena
Prices not confirmed · Sep 30, 2026- Free access (per Terms of Use)Free of charge per the terms; no public price list
Strengths and limits
Flint
Strengths
- Free pilot for a small group: The pricing page lists a free plan for up to 80 users, which covers a few classes.
- Teachers can see everything: Live sessions, transcripts, alerts and summaries are listed for teachers and administrators.
- Built on the teacher's own materials: Activities can draw on uploaded PDFs, slides and links, and the AI prioritises them, according to the FAQ.
Limits to plan around
- Sales-only above 80 users: Every paid tier says Contact sales; there is no self-serve checkout or published price for a single teacher.
- Free plan scope unclear: The page calls it free, the pilot FAQ calls it a free trial, and no time limit is stated.
- Free plan gets the faster model: Paid and trial schools get a more capable model than free-plan schools, according to the FAQ.
Arena
Strengths
- Free access per the terms: The terms state the service is currently free of charge and the credit help page describes a daily free balance.
- Method documented in public: The FAQ and help pages explain the voting model, anonymity and which modes affect rankings.
- Leaderboards need no login: Rankings and filters can be browsed without an account.
Limits to plan around
- No published price or credit size: The pricing URL shows a not-found page and the daily credit amount is not stated.
- Prompts are shared beyond Arena: Inputs go to third-party model providers, and conversations can feed de-identified public datasets.
- Terms allow future charges: The terms reserve the right to charge for the service or any feature.
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Questions about comparing tools
How does the comparison work?
Add two tools to the comparison tray from any tool card, then open this page. The table pulls each tool's verified plan details, platforms, strengths and limits from its profile, so both columns carry the same kind of evidence, with a separate source-check date for each tool.
Do you declare a winner?
No. The table sets two tools against each other on documented facts, not on a score. Which one wins depends on your task, your budget and your usage volume — three things we cannot see from here.
Why are some cells empty or marked unverified?
Because we could not confirm that detail on the vendor's own pages. Rather than filling the gap with a figure from elsewhere, we mark it and say why on the tool's profile.
Can I compare more than two tools?
Not at once. Two columns keep the differences readable and force a real decision. Remove either selected tool to replace it, or clear both to start a new pair.
Every figure in the table above comes from the linked profile, where the source and the verification date are listed. Browse all tools or read the editorial policy.