Tuesday, July 7, 2026 · No. 345Prices synced within the hour
All·AI·Model

The AI Model Price Index

Step 3.5 Flash

by Nvidia · listed Feb 2026RTW

StepFun flash model for efficient multimodal reasoning, coding, and tool use

Current rates USD per 1M tokens

Inputfree
Outputfree
Cache read—
Cache write—

Against the market

Input price vs. maker flagships ($/1M tokens)
Step 3.5 FlashStep 3.5 Flash: free per 1M tokensfreeDeepSeek V4 FlashDeepSeek V4 Flash: $0.14 per 1M tokens$0.14Qwen3.7 PlusQwen3.7 Plus: $0.50 per 1M tokens$0.50Grok 4.3Grok 4.3: $1.25 per 1M tokens$1.25Gemini 3.5 FlashGemini 3.5 Flash: $1.50 per 1M tokens$1.50Mistral Medium (latest)Mistral Medium (latest): $1.50 per 1M tokens$1.50Claude Sonnet 5Claude Sonnet 5: $2.00 per 1M tokens$2.00GPT-5.5 ProGPT-5.5 Pro: $30.00 per 1M tokens$30.00
Output price vs. maker flagships ($/1M tokens)
Step 3.5 FlashStep 3.5 Flash: free per 1M tokensfreeDeepSeek V4 FlashDeepSeek V4 Flash: $0.28 per 1M tokens$0.28Grok 4.3Grok 4.3: $2.50 per 1M tokens$2.50Qwen3.7 PlusQwen3.7 Plus: $3.00 per 1M tokens$3.00Mistral Medium (latest)Mistral Medium (latest): $7.50 per 1M tokens$7.50Gemini 3.5 FlashGemini 3.5 Flash: $9.00 per 1M tokens$9.00Claude Sonnet 5Claude Sonnet 5: $10.00 per 1M tokens$10.00GPT-5.5 ProGPT-5.5 Pro: $180 per 1M tokens$180

On the record

Model id
stepfun-ai/step-3.5-flash
Context window
256K tokens
Max output
16K tokens
Input modalities
text
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
yes
Knowledge cutoff
—
Released
2026-02-02
Last updated
2026-02-02
Provider docs
docs.api.nvidia.com/nim/

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