HSR 4.5 Preview Highlights

After such a long wait, the 4.5 preview is finally almost here!
According to the official schedule, the “The Chip That Casts a Thousand Stars” special preview program will go live on August 14 (Friday). This version has a lot packed in: SP Robin and SP Aventurine arrive as dual swimsuit characters, Zenless Zone Zero collaboration details will be revealed for the first time, and there are 300 Stellar Jade redemption codes to watch for.
If you are still hesitating over whether to pull more Eidolons for Castorice, wait until after the preview. Memory teams may be about to change dramatically.
Basic Livestream Information
Time: August 14, 2026 (Friday), 19:30 (Beijing Time)
Version Name: 4.5 “The Chip That Casts a Thousand Stars”
Expected Release: Around August 26
Livestream Channel: Official livestream room located in Amphoreus, the Eternal Land
Preview Story: A Trailblaze Continuance set “not long, or perhaps very long, after” the journey in Amphoreus ends
Livestream Highlights: Gameplay showcases for SP Robin: Sunny Song and SP Aventurine: Waveplay, Zenless Zone Zero collaboration news, and 300 Stellar Jade redemption codes
Special Reminder: The official repost lottery event has already started. Reposting the preview announcement post gives you a chance to win Star Rail Pass ×10.
SP Robin: Sunny Song - Is the Path of Remembrance About to Be Reshuffled?

Robin shifts from her original Physical Harmony role to a Wind Remembrance character, positioned as the core of a summon-based Remembrance system.
Base Stats (Lv.80):
HP: 1203 | ATK: 601 | DEF: 485 | SPD: 98 | Max Energy: 140
Core Mechanic - Memosprites and Fever State:
Her kit revolves around the “Clear Sky Musician” memosprites and the “Fever” state.
Atmosphere accumulation: When an allied target launches an attack, provides healing, or grants a shield, Robin gains Atmosphere. After reaching certain thresholds, she summons “Clear Sky Musician” Chumi and “Clear Sky Musician” Pudding respectively. Once the full band is on stage, she enters Fever and deploys a field. Inside the field, allied targets ignore part of the enemy’s DEF when dealing damage.
Fever state: Robin and her memosprites are immune to Crowd Control debuffs, and Robin will not take her own turn before the state ends. The countdown starts at 140 SPD, and Atmosphere is deducted at the start of each turn.
Enemy damage taken bonus: When Clear Sky Musicians are on the field, all enemies take increased damage based on the number of members: 10%/15%/20%.
Key Traces
Deviated Chord (A2): When a teammate gains Atmosphere, if their ATK is higher than Robin’s, that teammate’s ATK increases by Robin’s Max HP ×16% + Atmosphere ×0.4%. Otherwise, their CRIT DMG increases by 40% + Atmosphere ×1.5%, lasting 2 turns.
Improvised Blues (A4): When Robin or her memosprites receive healing or a shield, she gains 12 stacks of Rhythm. If she has Rhythm when Atmosphere is gained for the first time during any target’s turn, 1 stack is consumed to restore a fixed 3 Energy.
Harmonic Reconstruction (A6): Robin and her memosprites gain 50% increased CRIT Rate.
Eidolon Analysis:
E1: Clear Sky Musicians record 100% of allies’ non-True DMG. When using a memosprite skill, they additionally deal True DMG equal to 11% of the total recorded damage + Atmosphere ×0.1% to the target with the highest HP.
E2 (Major Breakpoint): All-Type RES PEN increases by 18%, the Atmosphere cap increases by 20, and when a teammate’s first skill use grants Robin Atmosphere, she gains 2 additional points.
Impact on Existing Remembrance Teams:
Based on community discussion, SP Robin’s memosprite mechanics may directly compete with existing Remembrance characters such as Castorice and Evernight, potentially causing a “reshuffle” of Remembrance teams. For players who have already built a Castorice team, SP Robin may signal a new round of system iteration. Will she replace Castorice or Evernight, or can they coexist? This is one of the biggest questions to watch during the August 14 livestream.
SP Aventurine: Waveplay - The Elation Team Puzzle Piece Arrives

Aventurine jumps from his original Preservation sustain role into a Quantum Elation damage dealer. His kit is deeply tied to “Aha Moments” and follow-up attacks.
Core Resource Mechanics:
SP Aventurine’s core resources are “Heat” and “Good Work Deserves a Reward.”
“Heat” accumulation: After a teammate attacks, Aventurine gains 1 Heat. When Heat reaches 10, Aventurine immediately casts 【Cheers! To a Blazing Summer】 once, fixed as 20 Laugh Points, without consuming an action. Heat caps at 30.
“Good Work Deserves a Reward”: While Aventurine has this buff, his Skill additionally deals 40% Quantum Elation DMG to all enemies, and his Ultimate additionally deals 72% Quantum Elation DMG, with the duration extended by 1 turn.
Key Values (Lv.10):
Skill “Final Kill, Boiling Hot Sand”: Deals Quantum DMG equal to 240% of ATK to all enemies, gaining 2 Laugh Points and 4 Heat.
Ultimate “Winning Hand, Above the Surging Waves”: Deals Quantum DMG equal to 400% of ATK to all enemies, gaining 5 Laugh Points and 8 Heat. Aventurine’s SPD increases by 25% for 3 turns. Max Energy: 130.
Technique: Moves forward quickly and blocks enemy attacks. After entering battle, deals damage equal to 100% of ATK to all enemies, gaining 2 Heat and 20 Good Work Deserves a Reward.
Key Traces:
Revel in the Waves (A4): When there are other Elation characters in the team, the whole team gains +20% Elation, and Aventurine gains an additional +80%. If Aventurine is the only Elation character, Elation skill damage is treated as follow-up attack damage.
Old Dreams, Gold in the Sand (A6): CRIT DMG increases by 48%. After a teammate uses a Basic ATK, Skill, follow-up attack, or Ultimate, the whole team’s CRIT DMG increases by 48% for 3 turns, and Aventurine gains additional Heat.
Paradise Party (A2): When SPD is 140 or higher, Elation increases by 30%. For every 1 SPD above that, Elation increases by an additional 1%.
Key Eidolons:
E1 “A Holiday Used as Chips”: All-Type RES PEN increases by 24%.
E2 “Leisure Rises and Falls Like the Tide”: Heat cap increases to 50. The talent also triggers at 40/50 Heat, and Aventurine gains 4 additional Heat after using an Elation skill.
Team Restrictions and Power Positioning:
Aventurine’s talent is similar to Evernight’s in that it has team-building restrictions: only when the team contains a single Elation character will Elation skills be treated as follow-up attacks. The Elation system has been receiving steady buffs recently, and the addition of SP Aventurine will likely push Elation teams up another tier. E2 is the core transformation point.
First Reveal of Zenless Zone Zero Collaboration Details
This preview will reveal the first collaboration details between Honkai: Star Rail and Zenless Zone Zero.
The official team previously confirmed that the collaboration will officially begin in winter 2026. The “Pom-Pom Bangboo” Easter egg on Sixth Street was clearly a teaser. The official response was playful: “After technical evaluation, we are temporarily unable to fix the bug where ‘Pom-Pom Bangboo suddenly appeared on Sixth Street.’” The collaboration format, characters, and specific release timing should receive their first solid details in this preview.
Resource Planning Advice
| Your Situation | Recommendation |
| Already built a Remembrance team (Castorice/Evernight) | Watch SP Robin’s gameplay showcase on August 14 before deciding whether to pull more Eidolons. |
| Playing an Elation team (Yaoguang, etc.) | SP Aventurine is very likely a major system upgrade, with E2 as the key breakpoint. |
| Planning to pull SP characters | Version 4.5 launches on August 26, so start saving Stellar Jade now. |
| Interested in the Zenless Zone Zero collaboration | Watch the preview livestream. The official team will reveal the first batch of details. |
Not Enough Stellar Jade? Check Out Kardz HSR Top Up
Version 4.5 brings SP Robin and SP Aventurine back-to-back, followed by the Zenless Zone Zero collaboration version, so Stellar Jade pressure is going to be high.
If you play on the global server, you can check out Kardz’s HSR top up service. Kardz supports direct Stellar Jade top up through UID recharge, so you do not need to hand over your account password. Prices are cheaper than official channels, and delivery usually arrives within minutes.
Before placing an order, confirm your server and choose the direct top up mode. After the August 14 preview livestream, decide who to pull based on the actual information. Prepare your resources early so you are not scrambling later!











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