Model profile
Step 3.5 Flash
Evidence coverage
0 of 323 tracked benchmarks are published. 0 are verified and 0 provisional. 0 of 8 categories are measured.
- Published / tracked
- 0 / 323
- Verified
- 0
- Provisional
- 0
- Categories with evidence
- 0 / 8
Evidence by category
- Agentic0 benchmarksNot measured
- Coding0 benchmarksNot measured
- Reasoning0 benchmarksNot measured
- Knowledge0 benchmarksNot measured
- Math0 benchmarksNot measured
- Multilingual0 benchmarksNot measured
- Multimodal0 benchmarksNot measured
- Inst. Following0 benchmarksNot measured
BenchLM is tracking Step 3.5 Flash, but sourced benchmark results are not published on the site yet. This page currently shows the model metadata we can verify now, and score-level benchmark coverage will appear once public evaluations land.
Step 3.5 Flash is a open weight model with a 256K token context window. It processes queries without explicit chain-of-thought reasoning, offering faster response times and lower token usage.
This profile does not yet have sourced benchmarks on BenchLM, so the benchmark sections below are intentionally marked as coming soon.
Peer position
Exact provisional scores and ranks for the closest listed peers. A score can appear before a model clears the evidence threshold for a rank, so equal scores can have different rank states.
Range 55.0–55.47
- DeepSeek V4 Pro (High)DeepSeekCompare#8155.47DeepSeek V4 Pro (High) is #81 with a score of 55.47.
- DeepSeek V3.2DeepSeekCompare#8255.4DeepSeek V3.2 is #82 with a score of 55.4.
- Gemini 3.1 ProGoogleCompare#8355.3Gemini 3.1 Pro is #83 with a score of 55.3.
- GPT-5 (medium)OpenAICompare#8455.15GPT-5 (medium) is #84 with a score of 55.15.
- GLM-4.6Z.AICompare#8555.12GLM-4.6 is #85 with a score of 55.12.
- Step 3.5 FlashCurrent modelStepFun#8655.1Step 3.5 Flash is #86 with a score of 55.1.
- Kimi K2.7 CodeMoonshot AICompare#8755.0Kimi K2.7 Code is #87 with a score of 55.0.
Benchmark data coming soon
BenchLM has created this model profile, but no sourced benchmark rows are published here yet. Category charts, rankings, and score tables will appear after public evaluations are available and attached to source records.
Category evidence
Scores and ranks appear only where this model has published benchmark evidence. Categories without displayable source records remain not measured.
| Category | Score | Rank | Percentile | Weight | Benchmarks | Evidence |
|---|---|---|---|---|---|---|
| AgenticWeight 22%0 benchmarksNot measured | Not measured | Not ranked | Not available | 22% | 0 benchmarks | Not measured |
| CodingWeight 20%0 benchmarksNot measured | Not measured | Not ranked | Not available | 20% | 0 benchmarks | Not measured |
| ReasoningWeight 17%0 benchmarksNot measured | Not measured | Not ranked | Not available | 17% | 0 benchmarks | Not measured |
| KnowledgeWeight 12%0 benchmarksNot measured | Not measured | Not ranked | Not available | 12% | 0 benchmarks | Not measured |
| MathWeight 5%0 benchmarksNot measured | Not measured | Not ranked | Not available | 5% | 0 benchmarks | Not measured |
| MultilingualWeight 7%0 benchmarksNot measured | Not measured | Not ranked | Not available | 7% | 0 benchmarks | Not measured |
| MultimodalWeight 12%0 benchmarksNot measured | Not measured | Not ranked | Not available | 12% | 0 benchmarks | Not measured |
| Inst. FollowingWeight 5%0 benchmarksNot measured | Not measured | Not ranked | Not available | 5% | 0 benchmarks | Not measured |
Chatbot Arena performance
Scroll horizontally to inspect confidence intervals and vote counts.
| View | Elo | Confidence interval | Votes |
|---|---|---|---|
| Text Overall | 1395 | ±3.7 | 55,180 |
| Coding | 1450 | ±6.0 | 13,819 |
| Math | 1408 | ±10.8 | 3,128 |
| Instruction Following | 1387 | ±5.5 | 17,251 |
| Creative Writing | 1346 | ±7.2 | 8,755 |
| Multi-turn | 1397 | ±6.8 | 9,512 |
| Hard Prompts | 1413 | ±4.5 | 33,855 |
| Hard Prompts (English) | 1425 | ±5.7 | 15,593 |
| Longer Query | 1406 | ±5.5 | 19,962 |
Frequently Asked Questions
How does Step 3.5 Flash perform overall in AI benchmarks?
We are tracking Step 3.5 Flash, but sourced benchmark coverage is still coming soon. The profile lists only the model metadata that has a verified public source.
Is Step 3.5 Flash open source?
Yes, Step 3.5 Flash is an open weight model created by StepFun, meaning it can be downloaded and run locally or fine-tuned for specific use cases.
Does Step 3.5 Flash have full benchmark coverage on BenchLM?
Not yet. Step 3.5 Flash currently has 0 published benchmark scores out of the 323 benchmarks BenchLM tracks. BenchLM only exposes non-generated public benchmark rows, so missing categories stay blank until a sourced evaluation is available.
What is the context window size of Step 3.5 Flash?
Step 3.5 Flash has a published context window of 256K, which determines how much text it can process in a single interaction.
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