Tuesday, July 7, 2026 · No. 345Prices synced 1 hour ago
All·AI·Model

The AI Model Price Index

Step 3.7 Flash (Free)

by ZenMux · listed May 2026RTVW

Newer StepFun flash model for faster agents, coding, and multimodal prompts

Current rates USD per 1M tokens

Inputfree
Outputfree
Cache read—
Cache write—

Against the market

Input price vs. maker flagships ($/1M tokens)
Step 3.7 Flash (Free)Step 3.7 Flash (Free): 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 3.7 Flash (Free)Step 3.7 Flash (Free): 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/step-3.7-flash-free
Context window
256K tokens
Max output
256K tokens
Input modalities
text, image
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
yes
Knowledge cutoff
Jan 2026
Released
2026-05-29
Last updated
2026-05-29
Provider docs
docs.zenmux.ai

Back of the envelope

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