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Balanced — strong quality at a mid priceOpen Weights
Step 5 Preview Pricing
StepFun · stepfun-step-5-preview
Input / 1M tokens
$1.00
Output / 1M tokens
$2.70
Context window
1M tokens
≈ 1,333 pages of text
Max output
64k tokens
What it costs in practice
Typical request (1,200 in + 400 out tokens)$0.0023
1,000 requests / month$2.28/mo10,000 requests / month$22.80/mo100,000 requests / month$228.00/moEstimate your own workloadOpens the calculator with Step 5 Preview preloaded — adjust volume and token counts there.
Price history
Only one price point recorded so far.
The staircase chart appears once a price change is detected.
What it excels at
Supports 1M-token context and 64k output with vision capabilities at low per-token cost. Open weights enable self-hosted deployment for controlled environments.
The business tradeoff
Limited public benchmarks and ecosystem maturity as a preview release from StepFun. Self-hosting variance and potential gaps in complex reasoning compared with established frontier models.
Cheaper from StepFun
Head-to-head
Vendor list rates, as of Oct 8, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.