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fl

Step 3.7 Flash (FlexAI)

flexai·flexai/step-3.7-flash·GA·Open weights
Newer StepFun flash model for faster agents, coding, and multimodal prompts

Specs & pricing

Input / output per 1M tokens
Reference price·Eden AI
$0.20 / $1.15
Blended $0.44 · Cache read $0.03
Lowest paid·Eden AIGateway
$0.20 / $1.15
Blended $0.44
Context
262,144
Output limit
256,000
Knowledge cutoff
2026-03-01
Released / updated
2026-05-29 / 2026-05-29
Capabilities
✓ Reasoning✓ Tool use✓ Structured output✓ Temperature✓ Attachments
Modalities
TextImage

Available at 1 providers1 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
Eden AI
flexai/Step-3.7-Flash
Gateway$0.20$1.15$0.03—262,144256,000

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = loweffort = mediumeffort = high

Your usage cost

1Eden AI$77.10
The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input list $0.20Output list $1.15Min blended $0.44

Price history accumulates from each data sync; currently only 1 sample(s) (2026-09-07). Each future sync adds a point, and once accumulated a line is drawn here.

Related models

GLM-5.3-Flashcheaper alternative$0.15 / $0.50GPT-5 Nanocheaper alternative$0.05 / $0.40Qwen3.8 Flashcheaper alternative$0.15 / $0.47GPT-6 Lunacheaper alternative$0.10 / $0.50
Data partly from models.dev (MIT) · Eden AI official docs ↗