GPT-5.2 vs Claude Opus 4.6 vs Gemini 3

This article compares the Big 3 platforms dominating the AI market as of February 2026: GPT-5.2 from OpenAI, Claude Opus 4.6 from Anthropic, and Gemini 3 Pro from Google — analyzing from the perspective Thai organizations need to know, including real Benchmarks, API pricing, PDPA data security, and suitable Use Cases.

Meet the Big 3 AI Platforms

1. OpenAI — ChatGPT / GPT-5.2

OpenAI is the company that sparked the global AI conversation revolution with ChatGPT since late 2022. Its current flagship model is GPT-5.2 (Dec 2025), followed by GPT-5.3-Codex (Feb 2026) specializing in Coding.

• Strengths: Best Multimodal, first to break 90% on ARC-AGI-1, AIME 2025 Math at 100%, Hallucination reduced by 65%, 400K token Context, largest Ecosystem (Plugins, GPTs, DALL-E, Code Interpreter)
• Best for: High-quality general tasks, Multimodal work (image/audio/video), math/science tasks, organizations using the OpenAI Ecosystem
• Available models: GPT-5.2 Instant (fast), GPT-5.2 Thinking (deep analysis), GPT-5.2 Pro (heavy workloads), GPT-5.3 Codex (specialized Coding)
• Pricing: ChatGPT Plus $20/month, Pro $200/month, API: $1.75/$14 per MTok

2. Anthropic — Claude Opus 4.6 / Sonnet 4.6

Anthropic, founded by former OpenAI researchers, launched Claude Opus 4.6 on Feb 5, 2026 followed by Sonnet 4.6 — excelling in Coding, Agentic Workflow, and AI Safety, the best on the market.

• Strengths: Best at Coding (SWE-bench 80.8%), Enterprise Knowledge Work #1 (GDPval-AA 1,606 Elo — leading GPT-5.2 by 144 points), 200K Context (1M beta) + 128K Output, Adaptive Thinking, Agent Teams, excellent Thai language support
• Best for: Coding/Code Review, Agentic Workflow, analyzing long documents (contracts, legal), organizations requiring AI Safety
• Available models: Claude Opus 4.6 (highest accuracy + Agent), Claude Sonnet 4.6 (quality/price balance), Claude Haiku 4.5 (fast and affordable)
• Pricing: Claude Pro $20/month, API: Opus $5/$25, Sonnet $1/$5 per MTok

3. Google — Gemini 3 Pro / Gemini 3 Flash

Google DeepMind released Gemini 3 Pro in mid-February 2026 along with Gemini 3 Flash as the default in Gemini App — seamlessly connecting with the Google Ecosystem including Search, Workspace, and Cloud.

• Strengths: 1M token Context (longest among Closed-Source), leading Multimodal (text/audio/image/video/PDF), LiveCodeBench Pro #1 (2,887 Elo), ARC-AGI-2 #1 (77.1%), Google Workspace integration, adjustable Thinking Level low/high, Flash at very low pricing
• Best for: Organizations using Google Workspace, Data Analytics tasks, Multimodal tasks, searching for latest information, limited budgets (Flash)
• Available models: Gemini 3 Pro (Flagship), Gemini 3 Flash (fast/affordable), Gemini 3 Deep Think (AI Ultra subscribers)
• Pricing: Gemini Advanced $19.99/month, API moderate (Pro) very affordable (Flash) — $2/$12 per MTok (Pro)

Comparison Table: ChatGPT vs Claude vs Gemini

Let's look at a clear visual comparison across every dimension organizations should consider:

Which Tasks Are They Best For? — Recommendations by Use Case (Feb 2026)

No single AI is "the best at everything." The right choice depends on your organization's work. Here are recommendations for common Use Cases:

Document Work / Report Summaries / Contract Review

Recommended: Claude Opus 4.6 / Sonnet 4.6

Reason: 200K token Context Window (1M beta) allows reading entire long documents, max 128K token Output for very detailed responses, Enterprise Knowledge Work #1 (GDPval-AA 1,606 Elo), excellent Thai language support — ideal for summarizing meeting reports, reviewing government contracts, and analyzing TORs.

Creative Work / Content Marketing / Social Media

Recommended: ChatGPT (GPT-5.2)

Reason: Best Multimodal capabilities — creates Captions, Blog Posts, and Email Campaigns in various tones, generates images instantly with DALL-E 3, has a GPTs Store with Marketing-specific templates, and 65% reduced Hallucination compared to previous versions.

Data Analytics / Google Sheets / BI

Recommended: Gemini 3 Pro / Flash

Reason: Connects directly to Google Workspace, 1M token Context reads massive data volumes, analyzes Google Sheets data to create formulas and charts, summarizes from Gmail and Google Drive natively, and Flash offers very affordable pricing ideal for batch processing.

Code Review / Software Development

Recommended: Claude Opus 4.6 (Coding #1) or GPT-5.3 Codex (ultra-fast)

Reason: Claude Opus 4.6 is #1 on SWE-bench (80.8%), excels at understanding large Codebases, offers Agent Teams for multi-step tasks, and Claude Code for terminal-based development. GPT-5.3 Codex runs at 1,000 tok/s, ideal for automated coding pipelines.

Searching for Latest Information / Research

Recommended: Gemini 3 Pro

Reason: Connects directly to Google Search with real-time data updates, 1M token Context aggregates information from multiple sources, and ARC-AGI-2 #1 (77.1%) demonstrates strong novel reasoning capabilities.

Agentic Workflow / Automation

Recommended: Claude Opus 4.6

Reason: Agent Teams enable multiple models to collaborate, Adaptive Thinking adjusts analysis depth based on complexity, 128K token Output supports long multi-step tasks — ideal for DevOps, Document Processing Pipelines, or QA Automation.

Cautions for Organizations — PDPA and Data Security

Adopting AI in an organization isn't just about convenience — you must also consider data security and PDPA legislation. Here's what organizations need to consider:

1. Data That Must Never Be Sent to AI

• Customer/employee personal data — national ID numbers, salaries, health information
• Trade secrets — cost formulas, procurement pricing, business plans
• Confidential contracts/agreements — NDAs, client contracts
• Financial data — unpublished financial statements, bank account numbers

2. API vs Chat Interface — Which Is Safer?

For organizations, using the API is significantly safer than using the Chat Interface (web/app) because:

Issue	Chat Interface	API
Data Used to Train Models	May be used (must opt out)	Not used (all providers)
Data Retention	Stores conversation history	Not stored, or stored for 30 days
Data Control	Limited	Full control
Suitable for Organizations	Personal use / general tasks	Enterprise-level use

3. Guidelines for Safe AI Adoption in Organizations

• Define an AI Policy — clearly specify what data can and cannot be sent to AI
• Use API instead of Chat — for work involving organizational data, use APIs with a Data Processing Agreement (DPA)
• Use Enterprise Plans — OpenAI (ChatGPT Enterprise), Anthropic (Claude for Business), and Google (Gemini for Workspace) all offer plans guaranteeing data is not used for training
• Train employees — teach staff what should and shouldn't be sent to AI
• Verify Output — AI may generate inaccurate information (Hallucination); always have someone review before actual use

What About Saeree ERP? Can It Use AI?

As an ERP provider, we understand that many organizations are interested in using AI alongside their ERP systems — such as having AI analyze accounting data, summarize reports, or forecast sales.

In the meantime, organizations using Saeree ERP can use AI from various providers as supplementary tools, such as:

• Use Claude to summarize PDF reports exported from the ERP system
• Use ChatGPT to write customer follow-up emails
• Use Gemini to analyze data in Google Sheets exported from the system

Caution: Do not send confidential organizational data directly to AI. Use anonymized data or access AI through Enterprise Plans that guarantee data security.

Summary — How to Choose the Right AI for Your Organization (Feb 2026)

There is no definitive answer to "which AI platform is best." Everything depends on your organization's work and needs. Summary as of February 2026:

• For the best all-rounder + Multimodal + Math/Science → GPT-5.2 (AIME 100%, GPQA 92.4%)
• For Coding + Agentic + long documents + Enterprise → Claude Opus 4.6 (SWE-bench 80.8%, GDPval-AA #1)
• For Google Workspace + long Context + value → Gemini 3 Pro / Flash (1M tokens, ARC-AGI-2 77.1%)
• For the lowest API pricing → Gemini 3 Flash or Claude Haiku 4.5
• For maximum security → Claude (AI Safety leader) or ChatGPT Enterprise
• For Automation / Agent → Claude Opus 4.6 (Agent Teams + 128K output)

Most importantly — regardless of which AI platform you choose, your organization must have a clear AI Policy, define what data can and cannot be sent, use Enterprise Plans for work involving sensitive data, and train employees to understand both the benefits and risks of AI.

AI isn't here to replace people, but people who know how to use AI will replace those who don't. What matters is not just which platform you choose, but choosing to use it correctly, safely, and appropriately for your organization's context.

- Grand Linux Solution Team

If your organization needs an ERP system ready for the AI era, you can schedule a Demo or contact our consulting team for further discussion.