Yes, the Japan Rail (JR) Pass covers the Shinkansen between Kyoto and Tokyo, but with a major restriction regarding the "Nozomi" and "Mizuho" trains. These are the fastest categories and are not included in the standard pass. To travel for "free" with your pass in 2026, you must take the Hikari or Kodama trains. The Hikari is only about 20 minutes slower than the Nozomi for the journey to Tokyo. If you are determined to take the Nozomi for the sake of speed or specific timing, you can now purchase a special "Nozomi/Mizuho Supplement Ticket" for an extra fee (approx. ¥4,960) to use alongside your valid JR Pass. This 2026 rule allows for more flexibility than in the past. For most travelers, however, the Hikari remains the best choice as it still offers a high-speed, 2.5-hour journey through the heart of Japan without any additional out-of-pocket costs beyond the initial price of the pass.