Gemini 2.5 Pro is Google’s state-of-the-art AI model designed for advanced reasoning, coding, mathematics, and scientific tasks. It employs “thinking” capabilities, enabling it to reason through responses with enhanced accuracy...
Model details →Google: Gemini 2.5 Pro vs StepFun: Step 5 Preview
StepFun: Step 5 Preview wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional...
Model details →Side-by-side comparison
| Capability | Google: Gemini 2.5 Pro | StepFun: Step 5 Preview | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1.0M | 1M | 🏆 Google: Gemini 2.5 Pro |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $1.25 | $1.00 | 🏆 StepFun: Step 5 Preview |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $10.00 | $2.70 | 🏆 StepFun: Step 5 Preview |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Google: Gemini 2.5 Pro better than StepFun: Step 5 Preview?
StepFun: Step 5 Preview wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Google: Gemini 2.5 Pro and StepFun: Step 5 Preview?
Input: $1.25 vs $1.00 per 1M tokens. Output: $10.00 vs $2.70 per 1M tokens.
What context windows do Google: Gemini 2.5 Pro and StepFun: Step 5 Preview support?
Google: Gemini 2.5 Pro supports up to 1.0M tokens. StepFun: Step 5 Preview supports up to 1M tokens.
Do both Google: Gemini 2.5 Pro and StepFun: Step 5 Preview support tool calling?
Google: Gemini 2.5 Pro: yes. StepFun: Step 5 Preview: yes.