All models

Llama 4 Scout vs Step 3.5 Flash

Llama 4 Scout at $0.115 in and $0.345 out and Step 3.5 Flash at $0.115 in and $0.345 out — per million tokens, from the same wallet.

M

Llama 4 Scout

Meta

0.09¢

for a client proposal

$0.115 in · $0.345 out / 1M

328K context · released April 2025

Full page →
S

Step 3.5 Flash

StepFun

0.09¢

for a client proposal

$0.115 in · $0.345 out / 1M

262K context · released 6 months ago

Full page →

Asking all both at once — identical prompt, identical context — costs about 0.17¢ for a typical client proposal.

At a glance

  • All 2 cost the same on input.
  • Largest context: Llama 4 Scout at 328K tokens — about 470 pages.

Cost per task

Estimated totals at the rates above. Solid bar is input, lighter bar is output.

Quick code fix

2K in · 500 out
Llama 4 Scout
0.04¢
Step 3.5 Flash
0.04¢

Draft a client proposal from notes

5K in · 800 out
Llama 4 Scout
0.09¢
Step 3.5 Flash
0.09¢

Context-heavy session (Alyph workspace)

155K in · 4K out
Llama 4 Scout
1.9¢
Step 3.5 Flash
1.9¢

Analyze a 50-page legal contract

35K in · 1K out
Llama 4 Scout
0.44¢
Step 3.5 Flash
0.44¢

Large architecture refactor

250K in · 3K out
Llama 4 Scout
3¢
Step 3.5 Flash
3¢

Solid part of each bar is input tokens, the lighter part is output. Models that don’t fit a task are marked instead of priced.

Cost vs Token Amount

Drag the slider to adjust the split between input and output workload.

80% Input20% Output
free$0.08$0.160 tokens250k500k750k1000k
Llama 4 Scout
Step 3.5 Flash

Adjust the ratio slider to change how output tokens influence the final price for equivalent workloads.

Pricing

Llama 4 Scout
Step 3.5 Flash
Input / 1M tokens
$0.115
$0.115
Output / 1M tokens
$0.345
$0.345

Specs

Llama 4 Scout
Step 3.5 Flash
Provider
Meta
StepFun
Released
April 2025
6 months ago
Context window
328K
262K
Max output
16K
66K
Input
Text and Images
Text
Output
Text
Text
Reasoning
Answers directly
Shows its thinking
Knowledge cutoff
2024-08-31
—

Try it with real numbers

2K tokens in · 500 tokens out.

Llama 4 Scout

Meta

0.04¢

for this task

57% input · 43% output

Full pricing →

Step 3.5 Flash

StepFun

0.04¢

for this task

57% input · 43% output

Full pricing →

All 2, same prompt and context: 0.08¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 6,211 of these.

Which should you pick?

For long documents, Llama 4 Scout has the largest context window here — 328K tokens.

On price they are identical: about 0.09¢ for a typical task each.

For images or files, Llama 4 Scout can read them directly; Step 3.5 Flash is text-only.

If you want to watch the model think, Step 3.5 Flash shows reasoning; the other answers directly.

Or don’t pick. Send the identical prompt to all both, read the answers side by side, and keep the winner. How to run a fair bake-off →

Llama 4 Scout pricing →Step 3.5 Flash pricing →Add Lyria 3 Clip PreviewAdd Grok 4.20

Questions, answered

Which is cheaper, Llama 4 Scout or Step 3.5 Flash?

On a typical client proposal (5K tokens in, 800 out) they cost the same — about 0.09¢ each. Compare them on context and capabilities instead.

Which has the largest context window?

Llama 4 Scout — 328K tokens, about 470 pages.

Can I run Llama 4 Scout and Step 3.5 Flash side by side on Alyph?

Yes — that is what Alyph is built for: the identical prompt with identical context to all 2, answers rendered side by side, billed from one wallet. This exact combination costs about 0.17¢ for a typical task.

Ask both at once

Identical prompt, identical context, answers side by side — about 0.17¢ for a typical client proposal. Free to start, with $5 of credit.

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