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Step 3.5 Flash

StepFun · 199B · open weights

Strongest in Human preference (#137 of 346), weakest in Human preference (#137 of 346). Above par in 2 of 2 scopes. Among the models it meets almost everywhere, it finishes behind Gemini 4 Argon and Muse Wonder and ahead of O4 Mini and MiniMax M2.5.

§ 1 · Profile

What it is good at

Bars run from 50 — the average of the models each source lists — so right of the line is above par. The middle column is the gap to whoever leads that scope.

Human preference56.1#137/346
Human preference56.1#137/346

§ 2 · Head to head

What it beats, and what beats it

The same models turn up scope after scope. Counted once: where both were placed, who finished higher. Bars run right for Step 3.5 Flash, left for the other.

Koala 13Bwon 2 · lost 0
Oasst Pythia 12Bwon 2 · lost 0
RWKV 4 Raven 14Bwon 2 · lost 0
Alpaca 13Bwon 2 · lost 0
Olmo 7B Instructwon 2 · lost 0
Fastchat T5 3Bwon 2 · lost 0
Chatglm 6Bwon 2 · lost 0
Chatglm3 6Bwon 2 · lost 0
MPT 7B Chatwon 2 · lost 0
Stablelm Tuned Alpha 7Bwon 2 · lost 0
Dolly V2 12Bwon 2 · lost 0
Chatglm2 6Bwon 2 · lost 0
Gpt4all 13B Snoozywon 2 · lost 0
Llama 13Bwon 2 · lost 0
Qwen1.5 4B Chatwon 2 · lost 0
Gemma 2B Itwon 2 · lost 0
Llama 2 7B Chatwon 2 · lost 0
Mistral 7B Instructwon 2 · lost 0
Llama 3.2 1B Instructwon 2 · lost 0
Vicuna 7Bwon 2 · lost 0
Smollm2 1.7B Instructwon 2 · lost 0
Gemma 1.1 2B Itwon 2 · lost 0
Codellama 70B Instructwon 2 · lost 0
Stripedhyena Nous 7Bwon 2 · lost 0
Zephyr 7B Alphawon 2 · lost 0
Guanaco 33Bwon 2 · lost 0
Phi 3 Mini 128k Instructwon 2 · lost 0
Zephyr 7B Betawon 2 · lost 0
Codellama 34B Instructwon 2 · lost 0
Gemma 7B Itwon 2 · lost 0
Palm 2won 2 · lost 0
Qwen 14B Chatwon 2 · lost 0
Vicuna 13Bwon 2 · lost 0
Llama 2 13B Chatwon 2 · lost 0
Phi 3 Mini 4k Instructwon 2 · lost 0
Qwen1.5 7B Chatwon 2 · lost 0
Falcon 180B Chatwon 2 · lost 0
Mistral 7B Instruct V0.2won 2 · lost 0
Wizardlm 13Bwon 2 · lost 0
MPT 30B Chatwon 2 · lost 0
Dolphin 2.2.1 Mistral 7Bwon 2 · lost 0
Solar 10.7B Instruct V1.0won 2 · lost 0
Llama2 70B Steerlm Chatwon 2 · lost 0
Granite 3.0 2B Instructwon 2 · lost 0
Nous Hermes 2 Mixtral 8x7b Dpowon 2 · lost 0
Llama 3.2 3B Instructwon 2 · lost 0
Starling Lm 7B Alphawon 2 · lost 0
Llama 2 70B Chatwon 2 · lost 0
Phi 3 Small 8k Instructwon 2 · lost 0
Starling Lm 7B Betawon 2 · lost 0
Vicuna 33Bwon 2 · lost 0
Openhermes 2.5 Mistral 7Bwon 2 · lost 0
Tulu 2 Dpo 70Bwon 2 · lost 0
Granite 3.1 2B Instructwon 2 · lost 0
Snowflake Arctic Instructwon 2 · lost 0
Gemma 1.1 7B Itwon 2 · lost 0
Openchat 3.5won 2 · lost 0
Granite 3.0 8B Instructwon 2 · lost 0
Yi 34B Chatwon 2 · lost 0
Wizardlm 70Bwon 2 · lost 0
DeepSeek LLM 67B Chatwon 2 · lost 0
Internlm2_5 20B Chatwon 2 · lost 0
Qwen1.5 14B Chatwon 2 · lost 0
DBRX Instructwon 2 · lost 0
Mixtral 8x7b Instructwon 2 · lost 0
Phi 3 Medium 4k Instructwon 2 · lost 0
Gemma 2 2B Itwon 2 · lost 0
Qwen1.5 32B Chatwon 2 · lost 0
GPT-3.5 Turbowon 2 · lost 0
Granite 3.1 8B Instructwon 2 · lost 0
Llama 3.1 8B Instructwon 2 · lost 0
Yi 1.5 34B Chatwon 2 · lost 0
Zephyr Orpo 141B A35B V0.1won 2 · lost 0
Llama 3.1 Tulu 3 8Bwon 2 · lost 0
C4ai Aya Expanse 8Bwon 2 · lost 0
Llama 3 8B Instructwon 2 · lost 0
Gemini Prowon 2 · lost 0
Reka Flash 21Bwon 2 · lost 0
Mixtral 8x22b Instructwon 2 · lost 0
Hunyuan Standard 256kwon 2 · lost 0
Qwen1.5 72B Chatwon 2 · lost 0
Qwen1.5 110B Chatwon 2 · lost 0
Reka Flash 21B Onlinewon 2 · lost 0
Gemini Pro Dev Apiwon 2 · lost 0
Ministral 8Bwon 2 · lost 0
Jamba 1.5 Miniwon 2 · lost 0
Nova Microwon 2 · lost 0
Command Rwon 2 · lost 0
Olmo 2 32B Instructwon 2 · lost 0
Phi 4won 2 · lost 0
Gemini 1.5 Flash 8Bwon 2 · lost 0
Nova Litewon 2 · lost 0
Claude 3 Haikuwon 2 · lost 0
Qwen2 72B Instructwon 2 · lost 0
DeepSeek Coder V2won 2 · lost 0
Gemma 2 9B Itwon 2 · lost 0
C4ai Aya Expanse 32Bwon 2 · lost 0
Qwen2.5 Coder 32B Instructwon 2 · lost 0
Reka Flashwon 2 · lost 0
GLM-4won 2 · lost 0
Mistral Small 24B Instructwon 2 · lost 0
GPT-4won 2 · lost 0
Command R Pluswon 2 · lost 0
Llama 3 70B Instructwon 2 · lost 0
Nemotron 4 340B Instructwon 2 · lost 0
Gemma 2 9B It Simpowon 2 · lost 0
Claude 3 Sonnetwon 2 · lost 0
Llama 3.1 Tulu 3 70Bwon 2 · lost 0
Olmo 3.1 32B Thinkwon 2 · lost 0
IBM Granite H Smallwon 2 · lost 0
Llama 3.1 Nemotron 51B Instructwon 2 · lost 0
Reka Corewon 2 · lost 0
Jamba 1.5 Largewon 2 · lost 0
Gemma 2 27B Itwon 2 · lost 0
Nova Prowon 2 · lost 0
Granite 4.2 8Bwon 2 · lost 0
Granite 4.2 3Bwon 2 · lost 0
Llama 3.1 70B Instructwon 2 · lost 0
Hunyuan Large Visionwon 2 · lost 0
Llama 3.1 Nemotron 70B Instructwon 2 · lost 0
Qwen2.5 72B Instructwon 2 · lost 0
Mistral Small 3.1 24B Instructwon 2 · lost 0
Gemma 3 4B Itwon 2 · lost 0
Granite 4.1 8Bwon 2 · lost 0
Magistral Mediumwon 2 · lost 0
Mercurywon 2 · lost 0
Mistral Largewon 2 · lost 0
Olmo 3 32B Thinkwon 2 · lost 0
Athene 70Bwon 2 · lost 0
Grok 2 Miniwon 2 · lost 0
Gemini 1.5 Flashwon 2 · lost 0
Hunyuan Standardwon 2 · lost 0
NVIDIA Nemotron 3 Nano 30B A3Bwon 2 · lost 0
Athene V2 Chatwon 2 · lost 0
Qwen2.5 Pluswon 2 · lost 0
GPT OSS 20Bwon 2 · lost 0
GPT-4o Miniwon 2 · lost 0
Llama 3.3 70B Instructwon 2 · lost 0
Gemma 3n E4b Itwon 2 · lost 0
Qwen Maxwon 2 · lost 0
Step 1o Turbowon 2 · lost 0
Claude 3 Opuswon 2 · lost 0
Llama 4 Scout Instructwon 2 · lost 0
GPT-4.1 Nanowon 2 · lost 0
Molmo 2 8Bwon 2 · lost 0
Ring Flash 2.0won 2 · lost 0
DeepSeek V2.5won 2 · lost 0
Claude 3.5 Haikuwon 2 · lost 0
GPT-4 Turbowon 2 · lost 0
Hunyuan Largewon 2 · lost 0
Llama 4 Maverick Instructwon 2 · lost 0
Yi Lightningwon 2 · lost 0
Llama 3.3 Nemotron 49B Super V1won 2 · lost 0
Olmo 3.1 32B Instructwon 2 · lost 0
Step 2 16kwon 2 · lost 0
Nova 2 Litewon 2 · lost 0
Llama 3.1 405B Instructwon 2 · lost 0
Gemini Advancedwon 2 · lost 0
QwQ 32Bwon 2 · lost 0
Grok 2won 2 · lost 0
GPT-4owon 2 · lost 0
O1 Miniwon 2 · lost 0
GPT-5 Nanowon 2 · lost 0
Granite 4.2 30Bwon 2 · lost 0
Hunyuan Turbowon 2 · lost 0
Gemma 3 12B Itwon 2 · lost 0
Mercury 2won 2 · lost 0
NVIDIA Llama 3.3 Nemotron Super 49B V1.5won 2 · lost 0
GLM-4 Pluswon 2 · lost 0
MiniMax M2won 2 · lost 0
Ling Flash 2.0won 2 · lost 0
Qwen Pluswon 2 · lost 0
Qwen3 32Bwon 2 · lost 0
Llama 3.1 Nemotron Ultra 253B V1won 2 · lost 0
Step 3won 2 · lost 0
NVIDIA Nemotron 3.5 Lightning 30B A3Bwon 2 · lost 0
Gemini 1.5 Prowon 2 · lost 0
GLM-4.5vwon 2 · lost 0
GPT OSS 120Bwon 2 · lost 0
Gemini 2.0 Flash Litewon 2 · lost 0
Command Awon 2 · lost 0
Intellect 3won 2 · lost 0
Mistral Smallwon 2 · lost 0
NVIDIA Nemotron 3 Super 120B A12Bwon 2 · lost 0
Gemini 2.0 Flashwon 2 · lost 0
O3 Miniwon 2 · lost 0
Grok 3 Miniwon 2 · lost 0
MiniMax M1won 2 · lost 0
GLM-4.7 Flashwon 2 · lost 0
Gemma 3 27B Itwon 2 · lost 0
Trinity Largewon 2 · lost 0
Qwen3 Next 80B A3B Thinkingwon 2 · lost 0
GLM-4.5 Airwon 2 · lost 0
Qwen2.5 Maxwon 2 · lost 0
Claude 3.5 Sonnetwon 2 · lost 0
Gemini 2.5 Flash Litewon 2 · lost 0
GLM-4.6vwon 2 · lost 0
Qwen3 30B A3B Instructwon 2 · lost 0
Hunyuan Turboswon 2 · lost 0
GPT-4.1 Miniwon 2 · lost 0
MiniMax M2.1won 2 · lost 0
Mimo V2 Flashwon 2 · lost 0
Solar Pro4won 2 · lost 0
Hunyuan T1won 2 · lost 0
Qwen3 Coder 480B A35B Instructwon 2 · lost 0
Claude 3.7 Sonnetwon 2 · lost 0
GPT-5 Miniwon 2 · lost 0
MiniMax M2.5won 2 · lost 0
O4 Miniwon 2 · lost 0
Hunyuan Vision 1.5won 0 · lost 2
Qwen3.5 35B A3Bwon 0 · lost 2
Qwen3 Vl 235B A22B Thinkingwon 0 · lost 2
DeepSeek V3won 0 · lost 2
Qwen3.5 Flashwon 0 · lost 2
Qwen3 Next 80B A3B Instructwon 0 · lost 2
Qwen3 235B A22B Thinkingwon 0 · lost 2
Longcat Flash Chatwon 0 · lost 2
GPT-5.4 Nanowon 0 · lost 2
O1won 0 · lost 2
Claude Sonnet 4won 0 · lost 2
Inkling Smallwon 0 · lost 2
Grok 4 Fastwon 0 · lost 2
Mistral Mediumwon 0 · lost 2
Hunyuan Hy3won 0 · lost 2
Qwen3.5 27Bwon 0 · lost 2
Gemini 2.5 Flashwon 0 · lost 2
GLM-4.5won 0 · lost 2
Grok 3won 0 · lost 2
Grok 4won 0 · lost 2
Qwen3 Vl 235B A22B Instructwon 0 · lost 2
Mistral Large 3won 0 · lost 2
Claude Haiku 4.5won 0 · lost 2
GPT-4.1won 0 · lost 2
MiniMax M2.7won 0 · lost 2
NVIDIA Nemotron 3.5 Super Vl 120B A12Bwon 0 · lost 2
DeepSeek V3.1 Terminuswon 0 · lost 2
DeepSeek V3.1won 0 · lost 2
Qwen3.5 122B A10Bwon 0 · lost 2
Kimi K2won 0 · lost 2
DeepSeek R1won 0 · lost 2
DeepSeek V3.2won 0 · lost 2
Qwen3 235B A22B Instructwon 0 · lost 2
Qwen3 Maxwon 0 · lost 2
GLM-4.6won 0 · lost 2
Muse Glimmerwon 0 · lost 2
Nova Experimental Chatwon 0 · lost 2
NVIDIA Nemotron 3 Ultra 550B A55Bwon 0 · lost 2
Mistral Medium 3.5won 0 · lost 2
GPT-5 Chatwon 0 · lost 2
Claude Opus 4won 0 · lost 2
Kimi K2 Thinking Turbowon 0 · lost 2
Grok 4.1 Fastwon 0 · lost 2
Kimi K2.5 Instantwon 0 · lost 2
Mimo V2 Omniwon 0 · lost 2
Mistral Large 4won 0 · lost 2
O3won 0 · lost 2
Gemini 3.1 Flash Litewon 0 · lost 2
GLM-5v Turbowon 0 · lost 2
Mimo V2.5won 0 · lost 2
GPT-5won 0 · lost 2
GPT-5.2won 0 · lost 2
Gemma 4 26B A4Bwon 0 · lost 2
Qwen3.8 27Bwon 0 · lost 2
DeepSeek V4 Flashwon 0 · lost 2
GLM-4.7won 0 · lost 2
Inklingwon 0 · lost 2
MiniMax M3won 0 · lost 2
Grok 4.3won 0 · lost 2
Qwen3.5 397B A17Bwon 0 · lost 2
GPT-6 Lunawon 0 · lost 2
Qwen3.6 Pluswon 0 · lost 2
ChatGPT-4owon 0 · lost 2
Grok 4.7won 0 · lost 2
GPT-4.5won 0 · lost 2
Gemini 2.5 Prowon 0 · lost 2
Ernie 5.0won 0 · lost 2
Step 5won 0 · lost 2
GPT-5.4 Miniwon 0 · lost 2
Mimo V2 Prowon 0 · lost 2
GPT-5.3 Chatwon 0 · lost 2
Kimi K2.5won 0 · lost 2
Claude Opus 4.1won 0 · lost 2
Mimo V2.6 Flashwon 0 · lost 2
Gemma 4 31Bwon 0 · lost 2
Hy3won 0 · lost 2
GPT-5.6 Lunawon 0 · lost 2
Grok 4.6won 0 · lost 2
Gemini 3.5 Flash Litewon 0 · lost 2
GPT-5.1won 0 · lost 2
Qwen3.7 Pluswon 0 · lost 2
Claude Sonnet 4.5won 0 · lost 2
Dola Seed 2.0 Prowon 0 · lost 2
GLM-5won 0 · lost 2
GPT-6 Solwon 0 · lost 2
Qwen3.6 Maxwon 0 · lost 2
Kimi K2.6won 0 · lost 2
Claude Sonnet 5won 0 · lost 2
Qwen3.5 Maxwon 0 · lost 2
DeepSeek V4 Prowon 0 · lost 2
GLM-5.1won 0 · lost 2
Grok 4.1won 0 · lost 2
Grok 4.5won 0 · lost 2
GPT-5.6 Terrawon 0 · lost 2
Ernie 5.1won 0 · lost 2
Mimo V2.5 Prowon 0 · lost 2
Grok 4.20 Multi Agentwon 0 · lost 2
Grok 4.20won 0 · lost 2
Claude Sonnet 4.6won 0 · lost 2
GPT-5.5 Instantwon 0 · lost 2
Gemini 3 Flashwon 0 · lost 2
Qwen3.7 Maxwon 0 · lost 2
GLM-5.3 Flashwon 0 · lost 2
Claude Opus 4.5won 0 · lost 2
Claude Sonnet 5.5won 0 · lost 2
DeepSeek V4.1 Flashwon 0 · lost 2
GPT-5.4won 0 · lost 2
GLM-5.2won 0 · lost 2
GPT-5.2 Chatwon 0 · lost 2
GPT-6 Astrawon 0 · lost 2
Gemini 3.5 Flashwon 0 · lost 2
Mimo V2.6 Prowon 0 · lost 2
GLM-5.3won 0 · lost 2
Claude Opus 4.8won 0 · lost 2
GPT-5.5won 0 · lost 2
Qwen3.8 Maxwon 0 · lost 2
Gemini 3.6 Flashwon 0 · lost 2
GPT-6.1 Solwon 0 · lost 2
Gemini 3 Prowon 0 · lost 2
GPT-5.6 Solwon 0 · lost 2
Kimi K3won 0 · lost 2
Gemini 3.1 Prowon 0 · lost 2
Gemini 3.7 Flashwon 0 · lost 2
Muse Sparkwon 0 · lost 2
Claude Opus 5won 0 · lost 2
Muse Spark 1.1won 0 · lost 2
Muse Spark 1.2won 0 · lost 2
Muse Spark 1.3won 0 · lost 2
Gemini 3.8 Flashwon 0 · lost 2
Claude Opus 4.7won 0 · lost 2
Claude Fable 5.1won 0 · lost 2
Claude Opus 4.6won 0 · lost 2
Claude Fable 5won 0 · lost 2
Claude Opus 5.5won 0 · lost 2
Muse Wonderwon 0 · lost 2
Gemini 4 Argonwon 0 · lost 2

§ 3 · Sources

Where the numbers come from

1 publication, 1 figures. Every one links to the page it was read from.

LMArena Text ↗1 measureread 2026-10-19
LMArena Text 1393

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