Best AI for Data Analysis in 2026: CSV, SQL, and Spreadsheets
AI tools that can analyze CSVs, write SQL, generate charts, and explain data. Compare ChatGPT Plus, Claude, Gemini, and specialized tools. 【2026-09-13 Sunday Update】 Best AI subscription combos Q3 2026 published. Five stacks under $80/month covering different workflows: (1) Casual Chat — ChatGPT Plus $20 + Perplexity Pro $20 = $40/mo; (2) Hardcore Coding — Claude Max 5x ($100/yr÷12≈$8.3 annual) + GitHub Copilot Pro $10 + Devin Core $22 = $40.3/mo; (3) Domestic Productivity — Alibaba Bailian Qwen3.8-Flash ¥0.4/M + Volcano Doubao ¥100 credit + tokenrhythm DeepSeek V4.1 Flash valley ¥1/M = ~$68/mo for 50M tokens; (4) Full Multimodal — MiniMax Speech 2.8 HD + Doubao Seedream 4.0 + Sora 2 = $70/mo; (5) Research + Agent — Perplexity Max $200 + Devin Core $22 = $222/mo, budget alternative tokenrhythm ¥500 + Kimi K3 Agent API = $30/mo. This week picks: Cursor Pro for daily coding ($20/mo + 17% off annual), DeepSeek V4.1 Flash for batch workloads (¥1/M valley), tokenrhythm aggregator for peak production (¥500 credit + multi-model arbitrage). 【2026-09-14 Monday Update】 Cheapest AI API weekly ranking W37 (9/14-9/20) published. Top 5 picks by per-million-token list price: (1) DeepSeek V4-Flash ¥1/¥2 — 1M context, cheapest in market; (2) GLM-5.3-Flash ¥0.4/¥1.4 — Zhipu new-user 5-折 brings input to ¥0.2; (3) Qwen3.8-Flash ¥0.4/¥1.2 — 1M context, strongest Chinese; (4) MiniMax-M3 ¥0.6/¥1.4 — best price/quality for English creative; (5) Kimi K2.7 ¥1/¥3 — best for long-context reasoning + extended thinking. This week picks: batch workloads (data cleaning / log analysis / bulk translation) on DeepSeek V4-Flash or tokenrhythm aggregator DeepSeek V4.1 Flash valley (¥1/M); Chinese generation on Qwen3.8-Flash; English creative writing on MiniMax-M3. 【2026-09-15 Tuesday Update】 Domestic LLM comparison week. Top 5 by per-million-token list price (CNY): (1) Qwen3.8-Flash ¥0.4/¥1.2 — Alibaba cheapest, 1M context; (2) DeepSeek V4.1 Flash ¥1 valley / ¥2 peak — best price/performance, peak/valley pricing effective 9/10; (3) GLM-5.3-Flash ¥0.8/¥2.8 — Zhipu flagship, Chinese leader; (4) MiniMax-M3 ¥1/¥1 via tokenrhythm — best price/quality for English creative; (5) Kimi K2.7 ¥1/¥3 — Moonshot 256K context, agent-ready. 1M-context tier: DeepSeek V4-Pro-0813 / GLM-5.2 / qwen-3.8-max. Coding tier: Cursor Pro $20 / GitHub Copilot Pro $10 / MiniMax Token Plan Plus ¥199/mo (efficiencyScore 9.5). Batch workloads → Qwen3.8-Flash; long-form Chinese writing → GLM-5.3-Flash; agent/research → Kimi K2.7. tokenrhythm aggregator + DeepSeek V4.1 Flash valley pricing = ¥500 signup credit covers initial loads.
ChatGPT Plus has the best Code Interpreter for CSV/Python analysis. Claude is best for SQL generation. Gemini Pro integrates with BigQuery. For pure SQL, ChatGPT Plus and Claude both excel.
🏆 Editor’s Top 3 Picks
ChatGPT Plus
Best Code Interpreter, runs Python on uploaded CSV/Excel
Claude Pro
Best SQL generation, understands schema relationships
Gemini Pro
Best for Google Sheets + BigQuery workflows
Other Alternatives Worth Considering
Julius AI
$20/monthDedicated data analysis AI, simpler UX than ChatGPT
DeepSeek V4 Flash
$0.14/$0.28 per 1MCheapest for high-volume SQL generation
Frequently Asked Questions
Q.Which AI is best for analyzing Excel data?
A. ChatGPT Plus at $20/month is best for Excel/CSV analysis. Code Interpreter runs Python directly on uploaded files, generates charts, and explains findings. Claude Pro is a close second for SQL-heavy workflows.
Q.Can AI write SQL queries?
A. Yes. Claude Sonnet 5 and GPT-5.6 both write production-quality SQL from natural language. Claude slightly edges out GPT for complex JOINs and schema reasoning. Both are far better than older GPT-4 for SQL.
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