Arbitrum Bridge vs Optimism Gateway Same published score.
Arbitrum Bridge and Optimism Gateway tie on score at 55; the published tie-break orders them. Arbitrum Bridge is ahead on route coverage. Arbitrum Bridge ranks #8 and Optimism Gateway #9 of 18 published bridges. The ledger below shows where each side is ahead — pick by the criterion that matters to you.
ARArbitrum Bridge55
vs
Optimism Gateway55
Scores are out of 100; published scores fall within 41–99 · ranks #8 and #9 of 18
Arbitrum Bridge and Optimism Gateway tie on score at 55; the published tie-break orders them. Arbitrum Bridge is ahead on route coverage.
ARArbitrum Bridge #8 of 1855
Optimism Gateway #9 of 1855
Scores are out of 100; published scores fall within 41–99; a bar is empty at 41 and full at 99.
Why, term by termArbitrum Bridge leads on 1 of 4 published criteria; Optimism Gateway on 1. The terms sum to the gap.
TermArbitrum BridgeOptimism GatewayWeightPoints
Route coverage2/101/106.7+1.7for Arbitrum Bridge+0.9 of 32
Transfer speed2/103/105.3−1.4for Optimism Gateway−0.7 of 32
Net of the terms+0.4
Criteria roundingThe criteria block is rounded to whole points before it is spread−0.1
Reproduced gap+0.3
Published gapAfter score rounding and bounds — see the note below55550.0
Weight is in points of the 86-point weighted total. Points are score points of the gap between the two.
Arbitrum BridgeScore 55Native canonical bridge for Ethereum ↔ Arbitrum movementStrength: Trust — 10/10Watch-out: 7-day challenge delay on direct withdrawals (use third-party bridges for fast exits)Optimism GatewayScore 55Native canonical bridge for Ethereum ↔ Optimism / OP Stack chainsStrength: Trust — 10/10Watch-out: 7-day withdrawal window for direct exits (third-party bridges offer fast withdrawals)
Quick facts
At a glance
1 of 3 rows read the same for both.
FactArbitrum BridgeOptimism Gateway
Bridge feeSnapshotArbitrum docs, "Quickstart: Arbitrum bridge" (docs.arbitrum.io/arbitrum-bridge/quickstart.md, fetched 30 September 2026): no bridge fee is stated on that page; the user pays gas - "You’ll need the native currency of the parent chain to bridge your assets to the destination chain." A withdrawal needs a second, parent-chain transaction after the challenge period: "Upon confirmation (about one week later), you can execute them" (docs.arbitrum.io cross-chain messaging page). No dollar cost is published on either page, so the deposit and withdrawal dollar ranges the previous note carried are not repeated.OP docs, "Using the Standard Bridge" (docs.optimism.io/app-developers/guides/bridging/standard-bridge, fetched 30 September 2026): no bridge fee is stated on that page; the cost is gas, set per transfer as "_minGasLimit : Gas to use to complete the transfer on the receiving side." Deposits "are usually completed within 1-3 minutes" and withdrawals "are completed in 7 days as a result of the withdrawal challenge period", with a prove and a finalize transaction on Ethereum. No dollar cost is published on the page, so the dollar ranges the previous note carried are not repeated.
Asset coverageEditorialETH and any ERC-20 with a registered token bridge contractETH and registered ERC-20s
Region fitSnapshotglobalglobal
From the published criteria
Which should you pick?
AR
Arbitrum Bridge
55#8 of 18
Pick it when
Pick Arbitrum Bridge if route coverage matters most — it scores 2/10 to Optimism Gateway's 1/10 there (weight 28).
Strength
Trust — 10/10
Tradeoff
7-day challenge delay on direct withdrawals (use third-party bridges for fast exits)
Optimism Gateway
55#9 of 18
Pick it when
Pick Optimism Gateway if transfer speed matters most — it scores 3/10 to Arbitrum Bridge's 2/10 there (weight 22).
Strength
Trust — 10/10
Tradeoff
7-day withdrawal window for direct exits (third-party bridges offer fast withdrawals)
Self-identify in 10 seconds
Which one is actually for you?
ARArbitrum Bridge
Choose Arbitrum Bridge if route coverage matters most
Route coverage: 2/10 against 1/10 for Optimism Gateway (weight 28)
Arbitrum BridgeScore 55Native canonical bridge for Ethereum ↔ Arbitrum movementStrength: Trust — 10/10Watch-out: 7-day challenge delay on direct withdrawals (use third-party bridges for fast exits)
Optimism Gateway
Choose Optimism Gateway if transfer speed matters most
Transfer speed: 3/10 against 2/10 for Arbitrum Bridge (weight 22)
Optimism GatewayScore 55Native canonical bridge for Ethereum ↔ Optimism / OP Stack chainsStrength: Trust — 10/10Watch-out: 7-day withdrawal window for direct exits (third-party bridges offer fast withdrawals)
Criterion by criterion
Scorecard
Published criteria · weight in points of 868 of 8 cells scored. Strength is read from the evidence file; the weight is the published one. Methodology
Route coverage
by 1 of 10weight 6.7 of 86Arbitrum Bridge leads
Arbitrum Bridge2/10 out of 10
Optimism Gateway1/10 out of 10
Route clarity
weight 5.8 of 86Tie
Arbitrum Bridge9/10 out of 10
Optimism Gateway9/10 out of 10
Transfer speed
by 1 of 10weight 5.3 of 86Optimism Gateway leads
Arbitrum Bridge2/10 out of 10
Optimism Gateway3/10 out of 10
Trust
weight 6.2 of 86Tie
Arbitrum Bridge10/10 out of 10
Optimism Gateway10/10 out of 10
Score dimensions
weights sum to 86
The published score is five dimensions, each weighted for the category. "Published criteria" is the criteria block above; the other four are the engine's own terms — availability, friction, trust record, measured data. Each bar is one side's points out of that dimension's maximum; the weight beside the name is its points of the 86-point weighted total. The published criteria above can fill 24 of the block’s 30. A weight marked “constant here” belongs to a dimension every ranked product in the category holds at the same value: it still counts in the total, and it orders nothing here.
Availabilityweight 20 of 86
Arbitrum Bridge14/20Optimism Gateway14/20
Tie
Published criteriaweight 30 of 86
Arbitrum Bridge13.8/30Optimism Gateway13.7/30
Arbitrum Bridge leads
Frictionweight 10 of 86 · constant here
Arbitrum Bridge2.7/10Optimism Gateway2.7/10
Tie
Trust recordweight 8 of 86
Arbitrum Bridge3.2/8Optimism Gateway3.2/8
Tie
Measured dataweight 18 of 86
Arbitrum Bridge12.5/18Optimism Gateway12.5/18
Tie
Decision rulePublished order
Same published score — pick by the criterion that matters to you.
Pick Arbitrum Bridge if route coverage matters most — it scores 2/10 to Optimism Gateway's 1/10 there (weight 28).
Pick Optimism Gateway if transfer speed matters most — it scores 3/10 to Arbitrum Bridge's 2/10 there (weight 22).
The published order weighs every criterion the same way for everyone. To weigh them your way, run .
From the published order
Next best action
If this isn't your case
Other matchups worth comparing
How you can lose money here, and what the ranking scores
Verification failure: an invalid state or transfer is accepted.
Not assessed by this ranking: Contract failure, Control failure, Liveness failure, Custody failure, Regulatory failure, Execution failure, Exit failure. A high place says nothing about these; the Methodology tab says what each means.
Also scored, as cost, quality or a summary of several families: Route coverage (28%), Route clarity (24%), Execution speed (22%).
Questions
Frequently asked questions
Arbitrum Bridge and Optimism Gateway tie on score at 55; the published tie-break orders them. Arbitrum Bridge is ahead on route coverage. Published scores, out of 100: Arbitrum Bridge 55 (rank 8 of 18 bridges), Optimism Gateway 55 (rank 9 of 18).
Reviewed means both products compared here was read against its sources on or after that date; every ranked category is re-read at least every 45 days. Models research, extract and parse. A deterministic engine ranks. Every quote passes an adversarial refute pass.
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