ChatGPT
Free tier available
- Pro 500 (new 2026-09-29)$500/mo
- API -- GPT-6.1 Sol (launched 2026-09-29)$2/$10/per 1M tokens; cached input $0.10 (half of GPT-6 Sol's $0.20)
- Free$0
Our pickA
8.8/10ChatGPT
VS
B
7.5/10Microsoft Agent 365
ChatGPT vs Microsoft Agent 365
Tier-list head-to-head. ChatGPT takes the A-tier slot — here's the breakdown.
Last reviewed November 2, 2026· sweep-fresh
Spec sheet
At a glance
| ChatGPT | Microsoft Agent 365 | |
|---|---|---|
| Tier | A-tierwin | B-tier |
| Overall score | 8.8 / 10win | 7.5 / 10 |
| Free tier | Yeswin | No |
| Starting price | $500 | $15 |
| Best for | Everyone. | Enterprise IT and security teams running mixed-AI environments who need a single pane of glass over local a… |
| Last reviewed | 2026-11-02 | 2026-11-02 |
Head-to-head
Score showdown
Rated 1-10 on the same rubric across all 130 tools we cover.
Ease of use+4.0 ChatGPT
ChatGPT
10.0
Microsoft Agent 365
6.0
Output qualityTie
ChatGPT
8.0
Microsoft Agent 365
8.0
Value+1.0 ChatGPT
ChatGPT
8.0
Microsoft Agent 365
7.0
FeaturesTie
ChatGPT
9.0
Microsoft Agent 365
9.0
Overall+1.3 ChatGPT
ChatGPT
8.8
Microsoft Agent 365
7.5
What you'll pay
Pricing snapshot
Look past the headline number -- entry-tier limits drive most cost surprises.
Microsoft Agent 365
No free tier
- Standalone$15/user/month, paid yearly
- Microsoft 365 E7 (includes Agent 365)$99/user/month, paid yearly
Benchmark Head-to-Head
GPT-5.5 (launched 2026-04-23; scores below are the GPT-5.4 baseline -- GPT-5.5 launch benchmarks per OpenAI are logged in Known Issues, pending third-party verification) benchmarks — Microsoft Agent 365 has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| MMLU | Knowledge across 57 subjects | 91% |
| GPQA Diamond | Graduate-level science questions | 92.8% |
| AIME 2024 | Competition math problems | 83.3% |
| HumanEval | Python code generation | 95% |
| SWE-bench | Real GitHub issue fixing | 72% |
| ARC-AGI | Abstract reasoning puzzles | 73.3% |
The decision
Which should you pick?
Use-case anchors and category strengths, side by side.
Pick ChatGPTif…
A
8.8/10- ✓Easier to learn and use day-to-day -- friendlier onboarding curve
- ✓Better value at the price you'll actually pay (8.0/10 on value)
- ✓Free tier lets you actually try it before paying
- ✓Seriously -- if you're new to AI or want the most complete all-in-one package, ChatGPT is the default recommendation.
Everyone. Seriously -- if you're new to AI or want the most complete all-in-one package, ChatGPT is the default recommendation.
Visit ChatGPTPick Microsoft Agent 365if…
B
7.5/10- ✓Especially valuable for orgs already on or moving to Microsoft 365 E7, which includes Agent 365 and removes the per-seat math.
Enterprise IT and security teams running mixed-AI environments who need a single pane of glass over local agents (GitHub Copilot CLI, Claude Code, OpenAI Codex, OpenClaw), Copilot Studio agents, and cloud agents synced from Amazon Bedrock, Google Cloud, Anthropic Claude, Databricks, and Salesforce. Especially valuable for orgs already on or moving to Microsoft 365 E7, which includes Agent 365 and removes the per-seat math.
Visit Microsoft Agent 365Bottom line
The verdict
ChatGPT is the clear winner: 8.8/10 (A-tier) versus 7.5/10 (B-tier). Microsoft Agent 365 isn't a bad tool, but on every category that drives the overall score, ChatGPT comes out ahead. The tier gap is repeatable -- not methodology noise -- and the day-to-day experience reflects it.
On pricing, ChatGPT starts free while Microsoft Agent 365 requires a paid plan from day one ($15+). If you're testing the waters or running an occasional workload, that gap matters more than the score differential. ChatGPT starts at $500; Microsoft Agent 365 starts at $15. Compare what each entry tier actually unlocks before you compare list prices -- the limits matter more than the headline number.
By use case: pick ChatGPT when everyone. Pick Microsoft Agent 365 when enterprise it and security teams running mixed-ai environments who need a single pane of glass over local agents (github copilot cli, claude code, openai codex, openclaw), copilot studio agents, and cloud agents synced from amazon bedrock, google cloud, anthropic claude, databricks, and salesforce. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in ChatGPT's lane, the tier-list ranking and the use-case fit point the same direction; if you're in Microsoft Agent 365's lane, the score gap matters less than the fit.
Bottom line: ChatGPT is the better tool for most people right now. Pick Microsoft Agent 365 only when enterprise it and security teams running mixed-ai environments who need a single pane of glass over local agents (github copilot cli, claude code, openai codex, openclaw), copilot studio agents, and cloud agents synced from amazon bedrock, google cloud, anthropic claude, databricks, and salesforce -- that's its lane, and inside that lane it still earns its place.
Keep digging
Compare more & explore
Full ChatGPT review
Tier A · 8.8/10
Full Microsoft Agent 365 review
Tier B · 7.5/10
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Built from our daily AI-tool sweep, last touched November 2, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.