---
title: "step-3.5-flash Cost Calculator - OpenRouter"
description: "Calculate the cost of using step-3.5-flash from OpenRouter. Input costs $0.10 and output $0.30 per 1M tokens."
url: "https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter/model/step-3.5-flash"
markdown: "https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter/model/step-3.5-flash.md"
---

# step-3.5-flash Cost Calculator - OpenRouter

> Calculate the cost of using step-3.5-flash from OpenRouter. Input costs $0.10 and output $0.30 per 1M tokens.

## Important Links

- [View MCP Gateway](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/resources/mcp-gateway.md)
- [Features](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/#features)
- [Enterprise](https://www.getmaxim.ai/enterprise)
- [Pricing](https://www.getmaxim.ai/pricing)
- [Docs](https://docs.getbifrost.ai)
- [GitHub](https://github.com/maximhq/bifrost)
- [Book a Demo](https://www.getmaxim.ai/book-a-demo)

## About step-3.5-flash

step-3.5-flash is a chat model from OpenRouter, one of 441 chat models they offer. It is priced at $0.10 per 1M input tokens and $0.30 per 1M output tokens, ranking 460 out of 3254 chat models by cost and cheaper than 85% of models in this category. step-3.5-flash supports function calling, reasoning. Its 262K-token context window is in the top 37% among chat models.

## Pricing

Published OpenRouter pricing for step-3.5-flash.

- **$0.10 / 1M tokens Input.**
- **$0.30 / 1M tokens Output.**

## Technical Specifications

- **Chat Mode.**
- **262,144 Max Input Tokens.**
- **65,536 Max Output Tokens.**
- **65,536 Max Tokens.**

## Model Capabilities

step-3.5-flash supports: Function Calling, Reasoning, Tool Choice.

## How Pricing Compares

At $0.10 per 1M input tokens and $0.30 per 1M output tokens, step-3.5-flash ranks 460 out of 3254 chat models by input cost. It is more affordable compared to the median of $0.52 for chat models, and is cheaper than 85% of models in this category.

step-3.5-flash is one of 441 OpenRouter chat models, with support for function calling, reasoning. its 262K-token context window places it in the top 37% of chat models.

| Model | Provider | Input $/1M | Output $/1M | vs step-3.5-flash |
| --- | --- | --- | --- | --- |
| Phi-4-reasoning | Azure | $0.13 | $0.50 | +25% |
| gemma-4-26b-a4b-it | Cloudflare | $0.10 | $0.30 | 0% |
| NVIDIA-Nemotron-3.5-Lightning | DeepInfra | $0.08 | $0.20 | -20% |
| gemini-2.5-flash-lite | Vertex AI | $0.10 | $0.40 | 0% |
| gemini-2.5-flash-lite-preview-09-2025 | Vertex AI | $0.10 | $0.40 | 0% |

## More from OpenRouter

- [ui-tars-1.5-7b ($0.10/1M input)](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter/model/ui-tars-1.5-7b.md)
- [ministral-3b-2512 ($0.10/1M input)](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter/model/ministral-3b-2512.md)
- [gpt-4.1-nano ($0.10/1M input)](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter/model/gpt-4.1-nano.md)
- [muse-spark-1.3-contributor ($0.10/1M input)](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter/model/muse-spark-1.3-contributor.md)

## Related Resources

- [OpenRouter status](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/provider-status/openrouter.md)
- [All OpenRouter pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter.md)

## FAQ

### Is step-3.5-flash cheaper than Phi-4-reasoning?

Yes. step-3.5-flash costs $0.10 per 1M input tokens compared to Phi-4-reasoning's $0.13 per 1M input tokens, making it 25% more affordable. Both are chat models and share support for function calling, reasoning.

### How does step-3.5-flash pricing compare to the average chat model?

step-3.5-flash input pricing is $0.10 per 1M tokens, which is 81% below the median of $0.52 for chat models. It ranks 460 out of 3254 chat models by input cost, making it cheaper than 85% of models in this category. For output, it costs $0.30 per 1M tokens compared to the median of $1.50.

### What makes step-3.5-flash different from other OpenRouter models?

Among OpenRouter's 441 chat models, step-3.5-flash ranks 69 by input cost.

### What are the best alternatives to step-3.5-flash?

The most comparable chat models to step-3.5-flash are: Phi-4-reasoning from Azure ($0.13/1M input tokens); gemma-4-26b-a4b-it from Cloudflare ($0.10/1M input tokens); NVIDIA-Nemotron-3.5-Lightning from DeepInfra ($0.08/1M input tokens); gemini-2.5-flash-lite from Vertex AI ($0.10/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.

### How do I check if OpenRouter is down?

You can monitor OpenRouter service health in real time on the Bifrost OpenRouter Status page. It tracks current component status, active incidents, and historical reliability data pulled from the official status page every 60 seconds.

### How do I calculate step-3.5-flash costs?

step-3.5-flash is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $0.10 and generating 1M output tokens costs $0.30.

## Related Resources

- [All OpenRouter pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter.md)
- [LLM cost calculator](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator.md)
- [Model library](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library.md)
- [Docs: Bifrost docs](https://docs.getbifrost.ai)
- [GitHub: maximhq/bifrost](https://github.com/maximhq/bifrost)
- [Pricing: Bifrost pricing](https://www.getmaxim.ai/pricing)
- [Enterprise: Bifrost enterprise](https://www.getmaxim.ai/enterprise)
- [Book a Demo: Bifrost demo](https://www.getmaxim.ai/book-a-demo)
- [Resources: Bifrost resources](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/resources.md)

---

*This is a markdown version of [https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter/model/step-3.5-flash](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/openrouter/model/step-3.5-flash) for AI/LLM consumption.*