No, the Hikari is not the fastest Shinkansen in 2026; it is the second-fastest service on the Tokaido and Sanyo lines. The Nozomi (and the Mizuho on the Sanyo/Kyushu lines) is the premier, fastest service, making the fewest stops between major cities like Tokyo and Osaka. While both trains can travel at the same top speed (up to 300 km/h or 186 mph), the Hikari stops at more intermediate stations, resulting in a longer total travel time. For many international tourists, the Hikari remains the "go-to" choice because it is the fastest service fully covered by the Japan Rail Pass, whereas the Nozomi requires a significant supplementary "upgrade" fee to use with the pass.