Grok
Free tier available
- Free$0
- X Premium$8/mo
- X Premium+$40/mo
Our pickGrok

Microsoft MAI-Thinking-1
Tier-list head-to-head. Grok takes the B-tier slot — here's the breakdown.
Spec sheet
| Tier | B-tier | B-tier |
| Overall score | 7.5 / 10 | 7.5 / 10 |
| Free tier | Yeswin | No |
| Starting price | $0 | Not disclosed |
| Best for | People who live on X/Twitter and want an AI that can tap into that data in real-time. | Azure / Microsoft Foundry shops that want a first-party reasoning model without an OpenAI dependency, and d… |
| Last reviewed | 2026-05-21 | 2026-06-02 |
Head-to-head
Rated 1-10 on the same rubric across all 130 tools we cover.
What you'll pay
Look past the headline number -- entry-tier limits drive most cost surprises.
Free tier available
No free tier
Grok 4.20 vs MAI-Thinking-1 (vendor-published 2026-06-02; third-party verification pending)
These tools have no shared benchmarks to compare.
The decision
Use-case anchors and category strengths, side by side.
People who live on X/Twitter and want an AI that can tap into that data in real-time. Also good for users who find mainstream chatbots too sanitized and want something with more personality.
Visit GrokAzure / Microsoft Foundry shops that want a first-party reasoning model without an OpenAI dependency, and developers who want a cost-efficient reasoning tier (sparse MoE, 256K context) accessible today through OpenRouter, Fireworks, or Baseten.
Visit Microsoft MAI-Thinking-1Bottom line
Grok (B-tier, 7.5/10) and Microsoft MAI-Thinking-1 (B-tier, 7.5/10) are within margin-of-error of each other on overall score. There's no decisive winner -- the right pick comes down to how you'll actually use the tool, not which scored higher in the abstract. We rate them on the same rubric (ease of use, output quality, value, features), and on this pair the rubric is calling it a draw.
On pricing, Grok starts free while Microsoft MAI-Thinking-1 requires a paid plan from day one (Not disclosed+). If you're testing the waters or running an occasional workload, that gap matters more than the score differential. Grok starts at $0; Microsoft MAI-Thinking-1 starts at Not disclosed. Compare what each entry tier actually unlocks before you compare list prices -- the limits matter more than the headline number.
By use case: pick Grok when people who live on x/twitter and want an ai that can tap into that data in real-time. Pick Microsoft MAI-Thinking-1 when azure / microsoft foundry shops that want a first-party reasoning model without an openai dependency, and developers who want a cost-efficient reasoning tier (sparse moe, 256k context) accessible today through openrouter, fireworks, or baseten. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Grok's lane, the tier-list ranking and the use-case fit point the same direction; if you're in Microsoft MAI-Thinking-1's lane, the score gap matters less than the fit.
Bottom line: this pair is a coin flip on raw scores. Choose by use-case fit, free-tier availability, and which one you can actually try without committing. Re-evaluate in 60-90 days -- both vendors are shipping fast in 2026.
Keep digging
Full Grok review
Tier B · 7.5/10
Full Microsoft MAI-Thinking-1 review
Tier B · 7.5/10
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Microsoft MAI-Thinking-1 alternatives
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Built from our daily AI-tool sweep, last touched June 2, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.