AT&T Fiber vs Optimum
AT&T Fiber ranks higher on our formula, 81 to 71 on each provider's best plan. AT&T Fiber is cheaper over two years (from $50/mo all-in), and both top out at 5 Gbps.
Prices last checked September 2026.
Side by side
AT&T Fiber and Optimum compared
Real cost is the two-year monthly average with the promo step-up, equipment rental and installation folded in.
| Measure | AT&T Fiber | Optimum |
|---|---|---|
| Technology | Fiber | Cable, Fiber |
| Fastest plan | 5 Gbps | 5 Gbps |
| Upload on fastest plan | 5 Gbps | 5 Gbps |
| Lowest advertised price | $50/mo | $40/mo |
| Lowest real cost | $50/mo | $55/mo |
| Price steps up after promo | No | On some plans |
| Data caps | None | None |
| Contracts | None required | None required |
| Equipment fee | Included | Included |
| States served | 22 | 14 |
| Our rating (best plan) | 81/100 | 71/100 |
Plans
Every plan from both
AT&T Fiber
FiberChecked Sep 11, 2026- Fiber 300300 Mbps · $50/mo · real $50
- Fiber 500500 Mbps · $65/mo · real $65
- Fiber 1 Gig1 Gbps · $80/mo · real $80
- Fiber 5 Gig5 Gbps · $95/mo · real $95
Optimum
CableFiberNot yet checked- 300 Mbps300 Mbps · $40/mo · real $55
- 500 Mbps500 Mbps · $60/mo · real $72.50
- 1 Gig1 Gbps · $70/mo · real $82.50
- 5 Gig Fiber5 Gbps · $180/mo · real $180
Honest assessment
Where each one wins
AT&T Fiber
- Symmetrical upload and download
- No annual contract, no data cap
- Price does not jump after year one
- Only built in parts of 21 states
- Install windows can be far out
- Multi-gig limited to newer builds
Optimum
- No data caps
- Fiber tiers up to 5 Gig in NY/NJ/CT
- Frequent promotional pricing
- Service quality varies by market
- Price increases after promo
- Legacy Suddenlink areas run older plant
Head to head
Cities where AT&T Fiber and Optimum compete
Markets where we have both on record. Each page ranks every provider there.
Questions
AT&T Fiber vs Optimum, answered
Is AT&T Fiber or Optimum better?
AT&T Fiber ranks higher on our formula, 81 to 71 on each provider's best plan. AT&T Fiber is cheaper over two years (from $50/mo all-in), and both top out at 5 Gbps.
Which is cheaper, AT&T Fiber or Optimum?
AT&T Fiber has the lower real cost: $50 a month averaged over two years with fees included, against $55 for Optimum. The advertised entry prices are $50 for AT&T Fiber and $40 for Optimum.
Which is faster, AT&T Fiber or Optimum?
AT&T Fiber sells the faster top plan, at 5 Gbps down and 5 Gbps up. Optimum tops out at 5 Gbps down and 5 Gbps up. For most households upload speed matters more than the headline download figure.
Where can I get both AT&T Fiber and Optimum?
We have both on record in 6 markets, including Lubbock, TX; Amarillo, TX; Oklahoma City, OK; Tulsa, OK; Shreveport, LA. Availability still varies street by street.
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