Neuro-sama

Neuro-sama
Neuro-sama's third design
Occupations	Twitch streamer YouTuber Virtual YouTuber
Twitch information
Channel	vedal987
Years active	2022–present
Genres	Gaming chatting singing
Games	osu! Minecraft chess
Followers	876,000+
YouTube information
Channel	Neuro-sama
Years active	2022–present
Genres	Gaming chatting singing
Subscribers	800,000+
Views	311,579,072
Last updated: 17 December 2025

Neuro-sama is an artificial intelligence VTuber and chatbot that livestreams on her creator's Twitch channel, vedal987. Her speech and personality are powered by a large language model (LLM) that is combined with a computer-animated avatar and a text-to-speech voice, allowing her to communicate with viewers in the stream's chat. Her creator, Vedal, often streams with her. Neuro-sama debuted on Twitch on 19 December 2022. As of December 2025, vedal987 is the eighth most-subscribed channel on Twitch of all time.

Development

Neuro-sama, often just called Neuro, was created by an anonymous developer known as Vedal. Her responses are generated by a large language model and converted into a high-pitched female voice using a text-to-speech application. According to Vedal, a separate AI model controls her in-game actions when she plays video games. In a 2023 interview with Bloomberg News, he said that Neuro-sama was his full-time job.

A separate AI Vtuber, known as Evil Neuro (nicknamed "Evil"), debuted on 25 March 2023 and was initially created as a way for Neuro-sama to interact with herself. Later, as Vedal attempted to develop a more expressive voice for Neuro-sama, a decision was made to instead give Evil the new voice. Although Evil was originally a clone of Neuro, her appearance and personality have diverged from Neuro's over time.

The first iteration of Neuro-sama was created in May 2019 as a neural network trained to play the rhythm game osu!. Three years later, Neuro-sama would re-debut on Twitch, after a long hiatus, on 19 December 2022, now a chatbot utilizing the free-to-use Live2D 'Hiyori Momose' model. Neuro and Evil received their second (V2) model on 27 May 2023, which was modelled by Otozuki Teru and designed by Anny. The new model was designed to be similar to the original, which had become closely associated with Neuro-sama, while still giving Neuro-sama her own distinct visual identity. Neuro received her current (V3) model on 19 December 2024; this model was rigged by Kitanya and also designed by Anny.

History

2022

Neuro streamed every day after her debut. She grew rapidly in popularity, from a maximum concurrent viewership of 516 on 19 December to 3,393 on 31 December, and going from a Twitch follower count of 2,825 to around 40,000 in the same time period. Nearly all of her streaming content in 2022 was of the rhythm game osu!, with one Minecraft stream. On 28 December, she defeated osu! champion mrekk 10–5 in a 1v1 contest.

2023

On 3 January, Neuro-sama reached 50,000 Twitch followers. The next day, on 4 January, Neuro-sama sang for the first time on stream, performing "Blinding Lights" by The Weeknd.

On 11 January, the Twitch channel received a temporary ban for unspecified "hateful conduct", likely stemming from controversial statements made by the AI, including skepticism surrounding the validity of the Holocaust. Vedal added more words to her chat filter to prevent Neuro-sama from making offensive statements after this occurred. Neuro-sama returned to Twitch on 25 January 2023 and surpassed 100,000 followers the same day.

On 20 February, Neuro-sama reached 200,000 Twitch followers.

On 25 March, a new character called Evil Neuro was introduced. She was later established to be Neuro's twin sister.

On 15 April, Neuro-sama held a stream with Hololive member Takanashi Kiara, during which they rated the contents of viewers' refrigerators. The stream reached a peak of over 19,000 viewers on Kiara's channel and over 10,000 on Neuro-sama's. It was the first collaboration between Neuro-sama and a member of a major agency. She also reached 300,000 Twitch followers.

On 27 May, Neuro-sama debuted her first original Live2D model. She had previously used a sample model provided for free by Live2D Cubism. The stream reached a peak of 25,687 concurrent viewers, beating the channel's previous record by more than double. On 30 May, Neuro-sama was announced to be participating in OffKai Expo 2023, held from 16–18 June, marking her first fan convention appearance. On 14 June, Neuro-sama held her first sponsored stream in the form of a watchalong commentating on the debut stream of a talent from VTuber group idolEN.

On 1 September, Neuro-sama reached 400,000 Twitch followers. On 16 December, vedal987 received an award for Best Tech VTuber at the 2023 VTuber Awards. On 19 December, Neuro-sama held her first subathon alongside her first anniversary of streaming on Twitch. During the subathon, Neuro-sama achieved the status of most watched VTuber across all major livestreaming platforms, and most watched female streamer on Twitch for the fourth week of December according to Streams Charts.

2024

On 4 January, at 1:24 PM (UTC), Neuro-sama ended her subathon after 17 days of continuous livestreaming, garnering a total of 41,767 Twitch subscriptions and 2.43 million collective watch hours. Later that month, on 28 January, Neuro-sama reached 500,000 Twitch followers.

On 18 March, following a two-and-a-half-month break, Neuro returned to streaming to a peak audience of 15,000 viewers with a Shrek watchalong. On 31 March, Neuro-sama made a physical appearance at WeebCon 2024. During the event, her avatar was displayed on a tablet, and she was carried around the venue by fellow VTubers Camila and Rainhoe to interact live with fans.

On 19 May, Neuro-sama's sister Evil Neuro completed her first full run of Slay the Spire using her adaptive gameplay AI. On 25 May, Neuro-sama participated in independent VTuber Dokibird's 2024 Wrestletuber event, combining indie VTubers and corporate VTubers across several VTuber agencies, including Hololive, VShojo, and idol Corp. The event was hosted on WWE 2K24, in which the VTubers' custom player models compete in a zero-player game style tournament. In this event, Neuro-sama's model fought and won in a show-match against VShojo's Zentreya. Altogether, a total of 35 individual VTubers participated in some fashion either as contestants or commentators. On 31 May, Neuro-sama debuted a new model of herself depicted as a loaf of bread, as a "punishment" for losing a court case against Evil Neuro the week prior. She would then appear in this model at OffKai Expo 2024 on a livestream with Filian and her creator Vedal. This model was then killed off in a later Subnautica stream due to her model being kayfabed by Vedal when he "exposed" her to water and "disintegrated" the bread model.

On 17 June, Neuro-sama's YouTube channel reached 300,000 subscribers. On 20 July, Neuro-sama began streaming with Japanese subtitles on a separate Twitch channel in response to an influx of Japanese interest after a tweet of Neuro-sama singing Dubidubidu by X (formerly Twitter) Japanese user 蒼(sora) gained virality, garnering 7.6 million views.

In August 2024, Neuro-sama debuted on the Chinese platform Bilibili. Her Bilibili channel grew explosively, even surpassing her Twitch follower count with 700,000+ followers as of January 2025. This is in part due to her pre-existing Chinese fans from extensive fansubbing of her Twitch livestreams and due to her unique nature as an AI VTuber.

On 15 September, Neuro-sama reached 600,000 Twitch followers. Additionally, both Neuro-sama and Evil Neuro participated in the Bilibili Ice & Fire Music Festival 2024 that featured 42 of the most popular Bilibili VTubers; the duo sang "Ordinary DISCO" by Vocaloid producer ilemonyk.

On 11 November, Neuro-sama and Evil Neuro played in a Geoguessr tournament against an AI created by Twitch streamer DougDoug based on his Twitch chat; Neuro-sama ended up winning.

On 19 December, Neuro-sama held her second annual subathon, complete with a debut of a new Live2D model. The subathon began with a debut of her first original song, "LIFE", along with a music video. The song and music video were produced and animated by Asteroid Music Team. Neuro also launched her own dedicated merch store page, with an internet-connected, colour-changing lava lamp being a key highlight.

2025

On 1 January, Neuro-sama broke the world record for the highest level of a Twitch hype train during her subathon, reaching level 111 and surpassing the former record holder, Pirate Software, who reached level 106. Over the course of three hours, she amassed nearly 85,000 subscribers and 1.2 million bits. On 16 January, at 10:56 AM (UTC), Neuro-sama's second-anniversary birthday subathon ended with a recap video. It lasted for a total of 28 days with all subscription goals achieved and amassing over 7 million collective watch hours. 166,911 subs and 3,183,212 Twitch bits were gifted in total. The subathon made vedal987 the seventh most-subscribed channel on Twitch of all time.

On 25 June, Neuro-sama's sister, Evil Neuro, debuted her first original song "BOOM" on a Twitch karaoke livestream. In contrast to the traditional 2D animated music video that accompanied Neuro-sama's "LIFE", Evil Neuro's song was accompanied by a fully 3D animated music video produced by VShow Production Team.

On 14 August, a video was released documenting Neuro-sama's integration into a 24V Maserati MC20 Two-Seater Kids Ride-On Toy Car at Opensauce. The software was developed by Vedal while the hardware integration was completed by Twitch streamer and robotics engineer Ellie_Minibot, and was brought to Opensauce 2025 at the San Mateo County Event Center by fellow Twitch streamer Bao The Whale. On 31 August, Neuro-sama and Evil Neuro released their third original song, "NEVER". Asteroid Music Team returned for the song production, mixing, and composition; several indie artists were involved in the creation of the accompanying music video, which was presented in a Live2D style. "NEVER" is the twins' first original duet.

On 15 November, Neuro-sama held her 3D model debut stream. The model was made by 3D character modeller jjinomu and a 3D stage environment was made with Unity. The model's movement was confirmed by Vedal as being driven by Neuro-sama's AI. The stream showcased Neuro's ability to control her avatar in all 6 degrees of freedom by walking, jumping, and spinning around. She also showcased several unique motions such as cartwheels, singing, and playing charades. In addition to the 3D stage, another showcased environment was Neuro's 3D bedroom where she was able to interact with various furniture such as a bed, couch, bean-bag chair, and coffee table. She also played a game of hide-and-seek with her creator, Vedal. The 3D debut marked a pioneering moment in the Vtubing industry as Neuro-sama was the first 3D avatar powered entirely via a large language model. Later that month on 30 November, Neuro's sister Evil published a cover of former Millionaires member Dani Artaud's Crazy Fuckin' Robot Body; the song cover did not appear with an music video. This was quickly followed by a release on 6 December from Neuro-sama with her own 2D animated music cover of Karma Wears White Ties and ODDEEO's Chinatown Blues which was a duet with her creator, Vedal. Both song covers were produced by Asteroid Music Team.

On 5 December, Neuro and Vedal, alongside fellow VTubers Filian and Crelly, began a marathon stream where they tried to beat Minecraft, but if any of the four died in-game they had to restart. The stream ended on 9 December (by GMT) after they beat the game on attempt 87.

On 19 December, Neuro-sama released her third orignial song "Colorful Array", with a similar animated music video style to her earlier "LIFE". The song was produced by Cosozomo Music as well as Andrew Homes, and composed by Thinh Bui and Tuan Lu.

Online content

Neuro-sama's Twitch content often centers around playing video games, notably osu!, in which her gameplay once defeated the best-ranking human player in the world, and Minecraft, in which her adaptations to sandbox gameplay have gained notoriety. Her content has also included singing songs; including several official covers and original songs; playing chess with her viewers, chatting with other VTubers during collaborations and reacting to YouTube videos. The AI frequently engages with viewers by responding to their questions and acknowledging donations. Her comedic and sometimes controversial responses to the live chat have gone viral, accelerating the channel's rise in popularity. Uniquely as of November 2025 Neuro-sama is the only AI vtuber with a 3D avatar that is controlled entirely via a large language model. Her fanbase has dubbed itself "The Swarm".

On 24 November, Neuro-sama's creator, Vedal released his own indie roguelike dungeon crawler game Abandoned Archive on Steam. The game was in development limbo for 4 years and was finally completed as it was a subathon stream goal reached in 2024; the game included a Neuro-sama statue as an easter egg on the second level.

Discography

As lead artist

Release date	Title	Artist	Ref.
19 December 2024	"LIFE"	Neuro-sama
25 June 2025	"BOOM"	Evil Neuro
31 August 2025	"NEVER"	Neuro-sama and Evil Neuro
19 December 2025	"Colorful Array"	Neuro-sama

Covers

Release date	Title	Artist	Original artist	Ref.
30 November 2025	"Crazy Fuckin' Robot Body"	Evil Neuro	SnowBlood a.k.a. Dani Artaud
6 December 2025	"Chinatown Blues"	Neuro-sama and Vedal	Karma Wears White Ties and ODDEEO

As featured artist

Covers

Original artist	Title	Year	Ref.
KIRA (feat. GUMI)	"Monster" (Camila feat. Neuro-sama)	2023
Set It Off (feat. Hatsune Miku)	"Why Do I" (Will Stetson feat. Neuro-sama)
Wowaka (feat. Hatsune Miku)	"Rolling Girl" (Obikatiekat feat. Evil Neuro)	2024
Melanie Martinez	"EVIL" (Camila feat. Evil Neuro)
Carly Rae Jepsen	"Call Me Maybe" (Nihmune feat. Neuro-sama)
Glorb	"The Bottom 2" (Nihmune ft Shylily, Neuro-Sama, Evil Neuro, Camila, Lucy Pyre, and Bao the Whale)	2025
32ki (feat. Hatsune Miku and Kasane Teto)	"Mesmerizer" (Bao The Whale feat. Neuro-sama)

Awards and nominations

Ceremony	Year	Category	Result	Ref.
The Streamer Awards	2023	Best Software And Game Development Streamer	Nominated
		Best VTuber	Nominated
	2024		Nominated
The VTuber Awards	2023	Best Tech VTuber	Won
	2024		Won
		Most Dedicated Fanbase (The Swarm)	Nominated
		VTuber Of The Year	Nominated

See also

• ai_sponge, a Twitch and YouTube channel that used artificial intelligence (AI) to generate livestream content featuring characters from the animated SpongeBob SquarePants
• Nothing, Forever, a 24/7 procedurally generated animated sitcom parodying Seinfeld that was launched on Twitch on 14 December 2022, five days before Neuro-sama
• Tay, a chatbot taken offline for denying the Holocaust

External links

• Neuro-sama on Twitch