MODEL PROOF
Step 3.7 Flash
NOT INDEPENDENTLY RATED
No independent LMArena score is published for this model.
Serving precision differs between offers.
- Independent LMArena score
- Not independently rated
- Context window
- 262.14K
- Maximum output
- 230.4K
- Input modalities
- text, image, video
- Output modalities
- text
- Published input price
- $0.200 / 1M tokens
- Published output price
- $1.15 / 1M tokens
- Pricing kind
- fixed
Inspect complete billing conditions and endpoint terms below.
Every price dimension · USD per million tokens
| Input | $0.200/M |
|---|---|
| Output | $1.15/M |
| Cached input | $0.040/M |
| Cache write | Unknown/M |
| Cache write 1h | Unknown/M |
| Reasoning | Unknown/M |
Who sells it
The same weights, different shops. Cheapest is not like-for-like when serving precision differs.
Headline cheapest is a lower precision. Like-for-like at the best declared precision is $0.200/M from Novita.
3 provider offers · rates, limits and conditions
Rates are USD per million tokens. Endpoint terms can differ even when the quoted price and precision match. A listed parameter is a provider declaration, not a task-success test.
| Seller | Input | Output | Precision | Uptime (1d) |
|---|---|---|---|---|
| DeepInfradeepinfra Endpoint terms
| $0.160 | $0.920 | undeclared | 99.87% |
| Novitanovita/fp8 Endpoint terms
| $0.200 | $1.15 | fp8 | 99.48% |
| StepFunstepfun/fp8 Endpoint terms
| $0.200 | $1.15 | fp8 | 99.53% |
Independent scores
No independent benchmark has measured this model. Unrated is not a score of zero.
Best rankings by task
- asciiart #37of 61 1165
- website #55of 114 1203
Capability
| Context window | 262K |
|---|---|
| Max output | 230K |
| Input modes | text, image, video |
| Tool use | yes |
| Reasoning | always on |
| Open weights | Unknown |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-09-23 |
| Quality data | unrated |
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a vision encoder for native image and video understanding, activating roughly 11B parameters...
Questions this page answers
What does Step 3.7 Flash cost?
$0.200/M in, $1.15/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.
Does Step 3.7 Flash have an independent quality score?
Step 3.7 Flash has no independent quality score in this catalogue. Unrated is not a score of zero.
What beats Step 3.7 Flash?
Step 3.7 Flash has no independent quality score. Unrated is not a score of zero.
Does this page use Artificial Analysis scores for Step 3.7 Flash?
No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated.
Does a missing score mean Step 3.7 Flash scored zero?
Unrated is not a score of zero.
Is the cheapest Step 3.7 Flash endpoint the same product?
Headline cheapest is a lower precision. Like-for-like at the best declared precision is $0.200/M from Novita.
MODEL MONUMENT
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The verdict as one SVG, for a README or a docs page. It states this model's dominance status at the balanced workload on the LMArena lens, with the date it was computed, and it is rebuilt with the catalogue — so it changes when the verdict changes, including to one you would rather it did not.
[](https://undominated.ai/models/stepfun__step-3.7-flash/)<a href="https://undominated.ai/models/stepfun__step-3.7-flash/"><img src="https://undominated.ai/badge/stepfun__step-3.7-flash.svg" alt="Step 3.7 Flash — Undominated.ai dominance verdict" height="36"></a>Direct file: https://undominated.ai/badge/stepfun__step-3.7-flash.svg — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never
older than the last deploy.
