TTPI$0.359−0.14%TPPI$1.67−1.15%TCPI$3.490.00%Qwen3.5 397B A17Bcached$0.220$0.225+2.30%Nemotron 3 Superout$0.400$0.450+12.50%Z.ai: GLM 4.6Vcached$0.050$0.055+10.00%Nemotron 3.5 Lightningcached$0.030$0.025−18.30%Thinking Machines: Inklingcached$0.160$0.170+6.30%Muse Glimmer 30Bout$1.50$1.20−20.00%MoonshotAI: Kimi K3cached$0.300$0.270−10.00%MoonshotAI: Kimi K2.6cached$0.094$0.073−22.50%MoonshotAI: Kimi K2.7 Codeout$3.30$3.35+1.50%DeepSeek V3.1 Terminusin$0.270$0.300+11.10%SpaceXAI: Grok 4.7cached$0.400$0.500+25.00%Qwen3 30B A3B Instruct 2507in$0.090$0.100+11.10%

TTPI$0.359−0.14%TPPI$1.67−1.15%TCPI$3.490.00%Qwen3.5 397B A17Bcached$0.220$0.225+2.30%Nemotron 3 Superout$0.400$0.450+12.50%Z.ai: GLM 4.6Vcached$0.050$0.055+10.00%Nemotron 3.5 Lightningcached$0.030$0.025−18.30%Thinking Machines: Inklingcached$0.160$0.170+6.30%Muse Glimmer 30Bout$1.50$1.20−20.00%MoonshotAI: Kimi K3cached$0.300$0.270−10.00%MoonshotAI: Kimi K2.6cached$0.094$0.073−22.50%MoonshotAI: Kimi K2.7 Codeout$3.30$3.35+1.50%DeepSeek V3.1 Terminusin$0.270$0.300+11.10%SpaceXAI: Grok 4.7cached$0.400$0.500+25.00%Qwen3 30B A3B Instruct 2507in$0.090$0.100+11.10%

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stepfun

MultimodalAUTO PROFILELIVE PRICING

Step 5 Preview

text+image+video->text

Step 5 Preview is a general-purpose chat-tuned model. Available via stepfun. 1,000,000-token context. Mid-tier pricing. Currently in preview; capabilities and pricing may shift.

Step 5 Preview is a multimodal AI model from stepfun. It costs $1.000 per million input tokens and $2.700 per million output tokens (blended $1.510/M), with a 1,000,000-token context window.

Modalities text, vision, videoPricing source ↗Compare with another model →Estimate monthly cost →

INPUT

$1.000/M

per million input tokens

OUTPUT

$2.700/M

per million output tokens

BLENDED 70/30

$1.510/M

unchanged since 3 May

default reference rate · how it is calculated →

CONTEXT

1,000,000

tokens

What it is good at

Solid general chat performance
Reasonable instruction following
Multimodal: handles images alongside text

Typical use cases

General chat
Drafting and rewriting
Personal productivity

Benchmarks

No published benchmark scores tracked for this model yet. Frontier and reasoning models from major providers have scores; smaller models and inference-host variants typically inherit the underlying open-weights score.

More from stepfun

text+image+video->text · 262,144 ctx

in $0.200/Mout $1.150/M

text->text · 262,144 ctx

in $0.100/Mout $0.300/M

Frequently asked questions

How much does Step 5 Preview cost?

Step 5 Preview costs $1.000 per million input tokens and $2.700 per million output tokens, for a blended reference rate of $1.510 per million tokens.

What is Step 5 Preview's context window?

Step 5 Preview supports up to 1,000,000 tokens of context in a single request.

What is Step 5 Preview best for?

Step 5 Preview is well suited to Solid general chat performance, Reasonable instruction following and Multimodal: handles images alongside text.

Who makes Step 5 Preview?

Step 5 Preview is developed and served by stepfun.

Terms used on this page

Full glossary →

Token Input tokens Output tokens Price per million tokens Context window Prompt caching Batch API Blended cost