Last Updated: September 28, 2026
AI SQL Tuner Studio is an AI-powered SQL Server performance tuning tool available in four editions: Free, Pro, Team, and Enterprise. Every edition includes all six tuning goals: Server Health Check, Index Insights, Deadlock Analysis, Code Review, Query Tuner, and Locking and Blocking Analysis. Every edition also works with every SQL Server platform, from SQL Server Developer Edition to Enterprise Edition, Azure SQL Database, Azure SQL Managed Instance, and Fabric SQL Database. Paid editions include a 14-day free trial.
The editions differ in how many analyses you can run each month, how many servers you can connect to, and which AI models you can use.
AI SQL Tuner Studio Editions at a Glance (Comparison Table)
The table below compares all four AI SQL Tuner Studio editions, including monthly analyses, server limits, AI models, pricing, and trial availability.
| Feature | Free | Pro | Team | Enterprise |
|---|---|---|---|---|
| SQL Server platforms supported | All: SQL Server (every edition), Azure SQL Database, Managed Instance, Fabric SQL Database | All | All | All |
| Analyses per month | 10 | 50 | 150 | 400 |
| Number of servers supported | Unlimited | Up to 2 | Up to 2 | Unlimited |
| Server Health Check | ✓ | ✓ | ✓ | ✓ |
| Index Insights | ✓ | ✓ | ✓ | ✓ |
| Deadlock Analysis | ✓ | ✓ | ✓ | ✓ |
| Code Review | ✓ | ✓ | ✓ | ✓ |
| Locking and Blocking Analysis | ✓ | ✓ | ✓ | ✓ |
| Query Tuner | ✓ | ✓ | ✓ | ✓ |
| GPT-5.6 Luna | ✓ | ✓ | ✓ | ✓ |
| GPT-6 Sol | – | – | ✓ | ✓ |
| Reasoning effort | Low, Medium | Low, Medium, High | Low, Medium, High | Low, Medium, High |
| Bring your own AI endpoint | – | ✓ | ✓ | ✓ |
| Analyses not stored unless you opt in | ✓ | ✓ | ✓ | ✓ |
| Best for | Students, developers, and evaluating on any server | DBAs and developers tuning regularly | Teams that want the premium GPT-6 Sol model | Corporations and ISVs with large SQL estates |
| Price | FREE | $10/month | $15/month | $20/month |
| 14-day free trial (requires credit card) | n/a | ✓ | ✓ | ✓ |
| 30-day money-back guarantee | n/a | ✓ | ✓ | ✓ |
| Download Now | Start 14-day trial | Start 14-day trial | Start 14-day trial |
Free Edition: Best for Students, Developers, and Evaluation
The Free edition is the easiest way to try AI SQL Tuner Studio on your own servers. It works with every SQL Server platform, including production SQL Server, Azure SQL Database, Azure SQL Managed Instance, and Fabric SQL Database, with no limit on the number of servers you connect to. You get 10 analyses per month across all six tuning goals, using the GPT-5.6 Luna model at Low or Medium reasoning effort. No credit card is required. Download the Free edition to get started immediately.
Until version 3.0.5, the Free edition was limited to SQL Server Developer Edition. Every edition now has a monthly analysis quota, so that restriction is gone.
Pro Edition: Best for DBAs and Developers Tuning Regularly
The Pro edition is built for DBAs and developers who tune SQL Server as part of their regular work. It includes 50 analyses per month, connections to up to 2 servers, and GPT-5.6 Luna at every reasoning level, including High. Pro also lets you bring your own AI endpoint if you’d rather use your own Azure OpenAI deployment. A 14-day free trial is available.
Team Edition: Best for Teams That Want the Premium Model
The Team edition adds GPT-6 Sol, our premium reasoning model, alongside GPT-5.6 Luna. It includes 150 analyses per month and connections to up to 2 servers, with every reasoning level and the option to bring your own AI endpoint. Start your 14-day free trial of the Team edition.
Enterprise Edition: Best for ISVs and Large SQL Estates
The Enterprise edition is built for organizations and ISVs managing large SQL Server estates. It includes everything in the Team edition, plus unlimited server connections and the highest quota: 400 analyses per month. Start your 14-day free trial of the Enterprise edition.
Which AI SQL Tuner Studio Edition Is Right for You?
Every edition supports every SQL Server platform and every tuning goal, so the choice comes down to how often you tune, how many servers you manage, and which models you want.
- Trying it out, or tuning occasionally? The Free edition gives you 10 analyses a month on any server.
- Tuning every week? The Pro edition raises that to 50 analyses a month and adds High reasoning effort.
- Want the premium model? The Team edition adds GPT-6 Sol and 150 analyses a month.
- Managing a large SQL estate? The Enterprise edition removes the server connection limit and includes 400 analyses a month.
You can also start a 14-day free trial of any paid edition to compare them hands-on before committing.
AI Models and Your Data
AI SQL Tuner Studio runs on your Windows desktop and connects directly to your database. Before each run, it shows you exactly what it will collect. Targeted metadata and execution-plan content are then sent to the AI model you choose, hosted on Azure using Microsoft Foundry. Table data and query results are never sent, and your analyses are not stored unless you choose to share them.
Both models were chosen by running real Index Tuning, Query Tuner, and Code Review workloads and measuring what the advice actually did. See our benchmark results. On Pro, Team, and Enterprise you can also bring your own Azure OpenAI endpoint. For setup details, see the AI SQL Tuner Studio User Guide.
Core Features Included in Every Edition
Every plan, from Free to Enterprise, includes these core capabilities:
- Server Health Check: Analyzes your SQL Server instance configuration, wait statistics, and resource usage to identify performance bottlenecks.
- Index Insights: Reviews missing, unused, and duplicate indexes to recommend changes that improve query performance, with the storage each change adds or frees.
- Query Tuner: Analyzes an individual SQL query’s execution plan and referenced tables to deliver index recommendations with ready-to-run DDL and before/after query rewrites. See the SQL Query Tuner page for details.
- Code Review: Examines your T-SQL stored procedures, functions, triggers, and views for anti-patterns, non-SARGable predicates, and best-practice violations. See the Code Review Tuning Goal page for details.
- Deadlock Analysis: Detects and explains deadlock patterns in your SQL Server workload, and provides rewritten code that prevents them.
- Locking and Blocking Analysis: Diagnoses active blocking chains and lock waits in real time to pinpoint the root cause of contention. See the Locking and Blocking Analysis page for details.
AI SQL Tuner Studio Editions: Frequently Asked Questions
Is there a free version of AI SQL Tuner Studio?
Yes. The Free edition includes all six tuning goals: Server Health Check, Index Insights, Deadlock Analysis, Code Review, Query Tuner, and Locking and Blocking Analysis. It works with every SQL Server platform, has no server connection limit, and includes 10 analyses per month. Download it here.
What is the difference between Pro, Team, and Enterprise?
The main differences are monthly analyses, server connections, and AI models. Pro includes 50 analyses per month, up to 2 server connections, and GPT-5.6 Luna. Team includes 150 analyses per month, up to 2 server connections, and adds GPT-6 Sol. Enterprise includes 400 analyses per month, unlimited server connections, and both models. All three include every reasoning level and the option to bring your own AI endpoint.
Do all editions support Azure SQL Database and Managed Instance?
Yes. Every edition, including Free, supports SQL Server (every edition, including Enterprise Edition), Azure SQL Database, Azure SQL Managed Instance (General Purpose and Business Critical), and Fabric SQL Database.
What counts as an analysis?
Each run of a tuning goal counts as one analysis. A run that times out does not count. The app shows how many analyses you’ve used and when your count resets.
What happens when I use all my analyses for the month?
Further runs are paused until your monthly count resets, on the same day each month that your subscription started. If you need more before then, you can upgrade to an edition with a higher quota at any time.
Is there a free trial for paid editions?
Yes. The Pro, Team, and Enterprise editions all include a 14-day free trial.
Can I upgrade from one edition to another?
Yes. You can upgrade your AI SQL Tuner Studio license at any time. Visit the AI SQL Tuner website to manage your subscription.
