Sonnet 4.5. Released yesterday. Now live on DATS-4 SQL Agent Suite. Solid upgrade, but more 4.2 than 4.5.

PDF Report Available at

app.tigzig.com → Database AI & SQL Apps

𝗤𝘂𝗮𝗹𝗶𝘁𝘆: Sonnet 4 was already the best. 4.5 is clearly better, but not by a big margin.

𝗖𝗼𝘀𝘁: Same as Sonnet 4.

𝗔𝘀𝘀𝗲𝘀𝘀𝗺𝗲𝗻𝘁: Initial assessment based on quick tests (see below/ docs). More to follow as I use it live.

𝗦𝗰𝗼𝗽𝗲: Reasoning based advanced analysis in multi-step multi-agent setup.

𝗤𝘂𝗮𝗹𝗶𝘁𝘆 𝗦𝗰𝗼𝗿𝗲𝘀

Claude Sonnet 4.5 - 115

Claude Sonnet 4 - 100

GPT-5 - 95

Qwen3 Max - 90

DeepSeek R1 - 85

Gemini 2.5 Flash - 75

𝗖𝗼𝘀𝘁

Reasoning & planning cost for advanced analysis task in USD per 100 questions. Execution cost extra. See next paragraph / doc for details.

Claude Sonnet 4.5 - $6.5

Claude Sonnet 4 - $6.5

GPT-5 - $15.0

Qwen3 Max - $2.0

DeepSeek R1 - $2.25

Gemini 2.5 Flash - $1.75

𝗜𝗻 𝗺𝘂𝗹𝘁𝗶-𝘀𝘁𝗲𝗽 𝗮𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗮𝗻𝗮𝗹𝘆𝘀𝗶𝘀, 𝗲𝘅𝗲𝗰𝘂𝘁𝗶𝗼𝗻 𝗶𝘀 𝘁𝗵𝗲 𝗯𝗶𝗴𝗴𝗲𝘀𝘁 𝗰𝗵𝘂𝗻𝗸. In DATS-4 I use GPT-4.1 for execution at about $10 per 100 questions. A single-step SQL agent is much cheaper (GPT-4.1 = $2 per 100, 4.1-mini = $0.50, 4o-mini = $0.25).

𝗠𝘆 𝗿𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱𝗮𝘁𝗶𝗼𝗻: 𝘂𝘀𝗲 𝘀𝗶𝗻𝗴𝗹𝗲-𝘀𝘁𝗲𝗽 𝘄𝗵𝗲𝗿𝗲𝘃𝗲𝗿 𝗽𝗼𝘀𝘀𝗶𝗯𝗹𝗲

In my own live usage, ~80% of work runs through single-step agents. Multi-step - reserve for the tough analysis cases.

𝗧𝗮𝘀𝗸 𝗘𝘅𝗮𝗺𝗽𝗹𝗲𝘀 (𝘁𝗲𝘀𝘁𝗲𝗱 𝗹𝗶𝘃𝗲)

▸ Credit card data mart build (1M customers, 10M transactions, AWS RDS MySQL).

▸ Weighted score ranking of Indian issuers (RBI monthly file, Supabase).

𝗗𝗔𝗧𝗦-𝟰

Full-stack Database SQL multi-agent: text-to-SQL, Python charts, stats, instant Postgres DB, PDF outputs, 9 reasoning models.

𝗟𝗶𝘃𝗲 𝗔𝗽𝗽 (𝗳𝗿𝗲𝗲):

app.tigzig.com → Database AI & SQL Apps → DATS-4

All credentials and API calls pass through my backend server. Free to test. For live use, deploy on your VPN.

Docs and source: open, full code at app site.