As of August 30, 2026, Step3-VL-10B API pricing is $0.10 per million input tokens and $0.30 per million output tokens. A typical 100K-in / 20K-out request costs $0.02. Source: https://openrouter.ai/stepfun/step-3.5-flash
Blended / 1M
$0.40
Input
$0.10
Output
$0.30
100K / 20K
$0.02
Specs
32.8K
Jan 15, 2026
Open source
Percentile against every model with a published score on that eval. Click a row for the full board.
AIME 2025 against blended input+output $/M. Log price. Step3-VL-10B is the green point.
Published scores
6 evals · 3 groups
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As of August 30, 2026, Step3-VL-10B OpenRouter API pricing is $0.10 per million input tokens and $0.30 per million output tokens via OpenRouter. Input tokens are the prompt you send; output tokens are the completion. Long answers therefore cost more than short ones even when the prompt stays the same. Source: https://openrouter.ai/stepfun/step-3.5-flash
On this page the blended Step3-VL-10B API cost is $0.40 for 1 million input tokens plus 1 million output tokens. That 1:1 mix is the comparison scale used across the LLM pricing table. A 3:1 mix (three million input tokens per one million output tokens), which some calculators use, would be about $0.60.
A typical Step3-VL-10B API request with 100K input tokens and 20K output tokens costs about $0.02 at current rates as of August 30, 2026. Multiply that by daily or monthly volume to estimate spend. Caching, batch APIs, and volume discounts from OpenRouter can bring the real invoice lower than the public list rate at https://openrouter.ai/stepfun/step-3.5-flash.
Step3-VL-10B supports a 33K token context window. The context window is the total prompt plus conversation history the model can see in one call. Larger windows cost more when you fill them, because every input token is billed per million tokens.
Yes. Step3-VL-10B is an open-weight model by StepFun. You can download the weights and self-host, or pay OpenRouter's hosted API and skip GPU ops. Hosted API pricing on this page is the public per-million-token rate, not the electricity cost of running the weights yourself.
Step3-VL-10B currently reports AIME 2025 87.7%, MMMU 78.1%, Mmbench 91.8%. See the performance table for the full eval set. Use those scores with the token prices above when you are choosing between a cheaper LLM and a frontier model. GPQA, SWE-bench, and HLE are the evals people usually compare first.
Use the Compare picker on this page to start an LLM comparison. Search by model or provider, pick a second model, and AnotherWrapper opens a dedicated Step3-VL-10B vs page with per-million-token prices, blended 1M-in / 1M-out cost, context window, throughput, and benchmarks. You can also open any model from the sidebar, or go back to the LLM pricing table to sort the full index.
The cheapest LLM alternative depends on whether you optimize for blended token cost, coding evals, or context window. Start with the popular matchups on this page, then sort the LLM pricing table by blended cost to see which hosted APIs undercut Step3-VL-10B. Open-weight models can be cheaper still if you self-host, but that is not the same as OpenRouter API pricing on this page.
Step3-VL-10B is called through OpenRouter's API with an API key. Bill against input and output tokens separately; cache or shorten prompts if spend is high. If you are shipping a full product, AnotherWrapper includes pre-built API routes and templates for OpenRouter and 5+ other providers with auth, payments, and deployment already configured.
This Step3-VL-10B page tracks the latest published OpenRouter API pricing from OpenRouter, quoted per million tokens. List rates can differ from invoices because of prompt caching, batch discounts, committed-use tiers, and private contracts. Official rate sheet: https://openrouter.ai/stepfun/step-3.5-flash. Benchmark scores come from official publications and independent evals, not from a private lab run by AnotherWrapper.
Step3-VL-10B is a open-source model from StepFun. Current API pricing is $0.10 per million input tokens and $0.30 per million output tokens, with a 32.8K token context window. A blended 1M-in / 1M-out workload costs $0.40.
Source: OpenRouter pricing (https://openrouter.ai/stepfun/step-3.5-flash)
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