Price Per TokenPrice Per Token

Step 3.5 Flash API Pricing 2026

Compare pricing, benchmarks, and providers for Step 3.5 Flash. Find the best value for your use case.

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Last updated: February 14, 2026 at 08:07 AM

Overview

Step 3.5 Flash was released on January 29, 2026. Pricing starts at $0.100 per million input tokens and $0.300 per million output tokens. The model supports a context window of up to 256K tokens. API access is available through Stepfun-ai.

Context Window
256K
tokens
Pricing
Input$0.100
Output$0.300
Cached$0.020
per 1M tokens
Speed
Output-
TTFT-
median latency
Capabilities
Caching

Pricing Comparison

Compare Step 3.5 Flash with 10 similar models by price.

Current Pricing (per 1M tokens)

11 models

Provider
Model
Input $/M
Output $/M
Coding
MMLU
GPQA
Context
Actions
$0.100
$0.300
256,000
Try
$0.080
$0.330
51.5
77.7
65.9
262,144
Try
$0.080
$0.240
28.8
72.7
53.5
40,960
Try
$0.080
$0.300
29.9
75.2
58.7
327,680
Try
$0.080
$0.500
33.2
68.6
42.7
131,072
Try
$0.090
$0.290
40.2
74.4
65.6
262,144
Try
$0.090
$0.450
131,072
Try
$0.090
$1.100
68.4
81.9
73.8
262,144
Try
$0.090
$0.600
32,768
Try
$0.100
$0.200
128,000
Try
$0.100
$0.400
64.1
79.6
65.1
1,048,576
Try

* Some models use tiered pricing based on prompt length. Displayed prices are for prompts ≤ 200k tokens.

Compare Providers

Step 3.5 Flash is available from multiple providers with different pricing and availability.

No multi-provider data available for this model

This model may only be available from a single provider

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Cost vs. Quality

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Frequently Asked Questions

Step 3.5 Flash costs $0.000100 per 1,000 input tokens and $0.000300 per 1,000 output tokens.
Step 3.5 Flash is available from 0 provider(s). Check the comparison table offers the best price.
We compare Step 3.5 Flash with 10 similarly-priced models. See the benchmark scatter plot above to compare quality vs cost.

All Stepfun-ai Models

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