Codex (OpenAI)
Free tier available
- Free$0
- Go$8/mo
- Plus$20/mo
Our pickCodex (OpenAI)
GPT-5.2-Codex (default 2026-04-23) / GPT-5.5 / GPT-5.4

Magnific AI
Tier-list head-to-head. Codex (OpenAI) takes the A-tier slot — here's the breakdown.
Spec sheet
| Tier | A-tierwin | C-tier |
| Overall score | 8.3 / 10win | 6.3 / 10 |
| Powered by | GPT-5.2-Codex (default 2026-04-23) / GPT-5.5 / GPT-5.4 | — |
| Free tier | Yeswin | No |
| Starting price | $0 | $39 |
| Best for | Developers already paying for ChatGPT Plus who want a coding agent at no extra cost. | AI artists and designers who need to upscale AI-generated images to print resolution with added detail. |
| Last reviewed | 2026-04-25 | 2026-04-29 |
Head-to-head
Rated 1-10 on the same rubric across all 130 tools we cover.
What you'll pay
Look past the headline number -- entry-tier limits drive most cost surprises.
Free tier available
No free tier
GPT-5.2-Codex (launched 2026-04-23 -- SOTA on SWE-Bench Pro and Terminal-Bench 2.0; first-party scores below pending detailed third-party verification) benchmarks — Magnific AI has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| SWE-bench | Real GitHub issue fixing | 72% |
| HumanEval | Python code generation | 95% |
The decision
Use-case anchors and category strengths, side by side.
Developers already paying for ChatGPT Plus who want a coding agent at no extra cost. Especially good for parallel task execution -- assign multiple bug fixes or feature branches and let Codex work them simultaneously.
Visit Codex (OpenAI)AI artists and designers who need to upscale AI-generated images to print resolution with added detail. If you're making art with Midjourney or Stable Diffusion, Magnific is the finishing step.
Visit Magnific AIBottom line
Codex (OpenAI) is the clear winner: 8.3/10 (A-tier) versus 6.3/10 (C-tier). Magnific AI isn't a bad tool, but on every category that drives the overall score, Codex (OpenAI) comes out ahead. The tier gap is repeatable -- not methodology noise -- and the day-to-day experience reflects it.
On pricing, Codex (OpenAI) starts free while Magnific AI requires a paid plan from day one ($39+). If you're testing the waters or running an occasional workload, that gap matters more than the score differential. Codex (OpenAI) starts at $0; Magnific AI starts at $39. Compare what each entry tier actually unlocks before you compare list prices -- the limits matter more than the headline number.
By use case: pick Codex (OpenAI) when developers already paying for chatgpt plus who want a coding agent at no extra cost. Pick Magnific AI when ai artists and designers who need to upscale ai-generated images to print resolution with added detail. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Codex (OpenAI)'s lane, the tier-list ranking and the use-case fit point the same direction; if you're in Magnific AI's lane, the score gap matters less than the fit.
Bottom line: Codex (OpenAI) is the better tool for most people right now. Pick Magnific AI only when ai artists and designers who need to upscale ai-generated images to print resolution with added detail -- that's its lane, and inside that lane it still earns its place.
Keep digging
Full Codex (OpenAI) review
Tier A · 8.3/10
Full Magnific AI review
Tier C · 6.3/10
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Built from our daily AI-tool sweep, last touched April 29, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.