How did StepFun Step 5 Preview do on X?
StepFun posted the Step 5 Preview launch from @StepFun_ai on Sep 20, 2026. The post has 487,829 views, 1,969 likes, 289 reposts, 171 quotes and 204 replies, an engagement rate of 0.54%. It ranks #883 of the 2839 launches Gridd tracks.
Introducing Step 5 Preview: Advancing the Pareto Frontier. Step 5 Preview is our new flagship model for agentic work, delivering frontier-level performance across software engineering and professional knowledge work, with particular strength in finance. - 600B total / 27B active MoE, with 1M context + Vision - Substantially lower task cost at comparable intelligence - Broad software engineering capabilities with sustained execution over long horizons Try Step 5 Preview: https://platform.stepfun.ai Model page: https://www.stepfun.com/step-5-preview Open weights on Oct 15.
- 2.8xthe median launch175K median views
- #883of the launches we trackout of 2839
- 29xits own following16,802 followers
- Views
- 487.8K
- Likes
- 2K
- Reposts
- 289
- Quotes
- 171
- Replies
- 204
- Bookmarks
- 591
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, 487.8K views would cost $49K. Gridd guarantees one million views, 2.0x what this post got, for about $25K.
The post reached about 29 views for every follower of @StepFun_ai.
What launched?
StepFun launched Step 5 Preview, a 600B parameter mixture-of-experts flagship model for agentic work with a 1M context window.
How does it compare with other launches?
StepFun Step 5 Preview has more views than 69% of the 2839 launches Gridd tracks: 2.8x the median launch's 175K views.
- StepFun Step 5 Preview487.8K
- Median tracked launch175K
- #1: xAI Voice Cloning204M
| Metric | StepFun Step 5 Preview | Median launch |
|---|---|---|
| Views | 487.8K | 175K |
| Engagement rate | 0.54% | 0.48% |
| Views per follower | 29 | 2.8 |
| Quote posts | 171 | 27 |
| Saves per 10K views | 12.1 | 14.2 |
Other StepFun launches we track: 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), StepFun StepAudio 3 (36K 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 | 1.9x | #561 |
| Accounts 10K to 100K followers | 1,135 | 99.4K | 4.9x | #261 |
| Image launch posts | 620 | 143.1K | 3.4x | #167 |
| Every launch | 2,839 | 175K | 2.8x | #883 |
What this launch shows
From an account with 16.8K followers, the post reached 29 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 9.4 times further than usual for its size. It ranks 261 of 1135 launches from accounts that size.
It drew 171 quote posts, 3.5 per 10,000 views against a median of 1.7. More 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 "Introducing Step 5 Preview: Advancing the Pareto Frontier.". The post runs 76 words, against a median of 39 for launch posts here, and leads with an image: image launches have a median of 143.1K views, against 186.1K for the rest.
There is a link in the post. Launch posts with a link have a median of 160.8K views in the tracker.
It went out on a Sunday (UTC). Sunday launches have a median of 153.1K views; the strongest day is Tuesday at 192.3K.
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 Step 5 Preview launch from @StepFun_ai on Sep 20, 2026.
- How many views did StepFun Step 5 Preview get on X?
- 487,829 views. StepFun posted it from @StepFun_ai on Sep 20, 2026, and the post has 1,969 likes, 289 reposts, 171 quotes, 204 replies and 591 bookmarks. Gridd re-reads these numbers from the post every six hours; these were read on Nov 14, 2026.
- Was StepFun Step 5 Preview a big launch on X?
- It ranks #883 of the 2839 launches Gridd tracks, with more views than 69% of them and 2.8x the median launch's 175K views. Its engagement rate is 0.54%, against a median of 0.48%.
- What would 487.8K 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, 487.8K views would cost $49K. Gridd guarantees one million views, 2.0x what this post got, for about $25K.
Source: Gridd launch tracker, gridd.agency/launches/stepfun-step-5-preview, 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.