How did StepFun StepAudio 2.5 TTS do on X?
StepFun posted the StepAudio 2.5 TTS launch from @StepFun_ai on Apr 21, 2026. The post has 17,235 views, 169 likes, 19 reposts, 1 quotes and 8 replies, an engagement rate of 1.14%. It ranks #2673 of the 2839 launches Gridd tracks.
StepAudio 2.5 TTS is live now! Control emotion, pacing, pauses, and delivery with plain natural language. No tags, no preset combos. Just describe what you want the voice to do. Zero-shot voice cloning with full timbre + emotion control. Available via Pay-as-you-go API or Step Plan.
- 10%the median launch175K median views
- #2673of the launches we trackout of 2839
- 1.0xits own following16,802 followers
- Views
- 17.2K
- Likes
- 169
- Reposts
- 19
- Quotes
- 1
- Replies
- 8
- Bookmarks
- 115
What would these views cost to buy?
At $100 per 1,000 views, the rate a brand pays an agency charging $100K for one million views, 17.2K views would cost $2K. Gridd guarantees one million views, 58x what this post got, for about $25K.
The post reached about 1.0 views for every follower of @StepFun_ai.
What launched?
StepFun launched StepAudio 2.5 TTS, a speech model controlled through plain natural language with zero-shot voice cloning, via pay-as-you-go API or Step Plan.
How does it compare with other launches?
StepFun StepAudio 2.5 TTS has more views than 6% of the 2839 launches Gridd tracks: 10% of the median launch's 175K views.
- StepFun StepAudio 2.5 TTS17.2K
- Median tracked launch175K
- #1: xAI Voice Cloning204M
| Metric | StepFun StepAudio 2.5 TTS | Median launch |
|---|---|---|
| Views | 17.2K | 175K |
| Engagement rate | 1.14% | 0.48% |
| Views per follower | 1.0 | 2.8 |
| Quote posts | 1 | 27 |
| Saves per 10K views | 66.7 | 14.2 |
Other StepFun launches we track: StepFun Step 5 Preview (487.8K views), StepFun Step 3.7 Flash (363.6K views), StepFun Step Image Edit 2 (100.1K views), StepFun StepAudio 2.5 ASR (80.3K views), StepFun StepAudio 2.5 Realtime (66.2K views), StepFun Step Code v0.1.0 (47.6K views). All 9 StepFun launches, or every ai launch.
Against launches like it
A launch only means something against comparable ones. These are the groups it belongs to, and where it sits in each.
| Compared with | Launches | Median views | This one | Rank |
|---|---|---|---|---|
| AI launches | 1,462 | 263K | 7% | #1404 |
| Accounts 10K to 100K followers | 1,135 | 99.4K | 17% | #1031 |
| Video launch posts | 1,940 | 192.5K | 9% | #1845 |
| Every launch | 2,839 | 175K | 10% | #2673 |
What this launch shows
From an account with 16.8K followers, the post reached 1.0 times the account's following. Launches from accounts 10K to 100K followers reach a median of 3.1 times their following, so this one went about 33% as far as usual for its size. It ranks 1031 of 1135 launches from accounts that size.
It drew 1 quote posts, 0.6 per 10,000 views against a median of 1.7. Fewer people than usual added their own take, and a quote post is what carries a launch to audiences the account does not have.
The first line is "StepAudio 2.5 TTS is live now!". The post runs 46 words, against a median of 39 for launch posts here, and leads with a video: video launches have a median of 192.5K views, against 137.6K for the rest.
There is no link in the post. Launch posts without a link have a median of 184.9K views in the tracker.
It went out on a Tuesday (UTC). Tuesday launches have a median of 192.3K views, the strongest day in the tracker.
Every comparison is against the 2839 launches in the tracker, read on Nov 14, 2026. Medians, not averages. See the state of launches on X for the full breakdown.
Questions about this launch
- What is StepFun?
- In its own words on X: "Scale-up possibilities for everyone. API Platform: HuggingFace" StepFun posted the StepAudio 2.5 TTS launch from @StepFun_ai on Apr 21, 2026.
- How many views did StepFun StepAudio 2.5 TTS get on X?
- 17,235 views. StepFun posted it from @StepFun_ai on Apr 21, 2026, and the post has 169 likes, 19 reposts, 1 quotes, 8 replies and 115 bookmarks. Gridd re-reads these numbers from the post every six hours; these were read on Nov 14, 2026.
- Was StepFun StepAudio 2.5 TTS a big launch on X?
- It ranks #2673 of the 2839 launches Gridd tracks, with more views than 6% of them and 10% of the median launch's 175K views. Its engagement rate is 1.14%, against a median of 0.48%.
- What would 17.2K views on X cost to buy?
- At $100 per 1,000 views, the rate a brand pays an agency charging $100K for one million views, 17.2K views would cost $2K. Gridd guarantees one million views, 58x what this post got, for about $25K.
Source: Gridd launch tracker, gridd.agency/launches/stepfun-stepaudio-2-5-tts, read from the post on X on Nov 14, 2026. Free to cite with a link (CC BY 4.0). Get every launch as JSON.