Claude Fable 5$22.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MGemini 1.5 Pro$2.375/MGemini 1.0 Ultra$12.000/MGemini 1.0 Pro$0.800/MClaude Fable 5$22.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MGemini 1.5 Pro$2.375/MGemini 1.0 Ultra$12.000/MGemini 1.0 Pro$0.800/M
BETA
Subscribe
← Back to Index
stepfun
stepfun
MultimodalAUTO PROFILELIVE INDEX

Step 3.7 Flash

text+image+video->text

Step 3.7 Flash is a compact variant — chosen for high throughput and low cost rather than absolute capability. Available via stepfun. 256K-token context. Efficient pricing.

Step 3.7 Flash is a multimodal AI model from stepfun. It costs $0.200 per million input tokens and $1.150 per million output tokens (blended $0.485/M), with a 256K-token context window.

Modalities text, vision, videoPricing source ↗Compare with another model →Estimate monthly cost →
INPUT
$0.200/M
per million input tokens
OUTPUT
$1.150/M
per million output tokens
BLENDED 70/30
$0.485/M
default reference rate · how it's calculated →
CONTEXT
256K
256,000 tokens
What it's good at
  • Sub-second latency
  • Affordable at scale
  • Good for routing & classification
  • Multimodal: handles images alongside text
Typical use cases
  • Routing & classification
  • Bulk summarisation
  • Realtime chat UX
Benchmarks
No published benchmark scores tracked for this model yet. Frontier and reasoning models from major providers have scores; smaller models and inference-host variants typically inherit the underlying open-weights score.
More from stepfun
See all 1 →
Step 3.5 Flash
text->text · 262K ctx
in $0.090/Mout $0.300/M
Frequently asked questions

How much does Step 3.7 Flash cost?

Step 3.7 Flash costs $0.200 per million input tokens and $1.150 per million output tokens, for a blended reference rate of $0.485 per million tokens.

What is Step 3.7 Flash's context window?

Step 3.7 Flash supports up to 256K tokens of context (256,000 tokens).

What is Step 3.7 Flash best for?

Step 3.7 Flash is well suited to Sub-second latency, Affordable at scale and Good for routing & classification.

Who makes Step 3.7 Flash?

Step 3.7 Flash is developed and served by stepfun.