Voxtral Small 24B 2507 vs Step 3.5 Flash

Voxtral Small 24B 2507 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.

Voxtral Small 24B 2507

Mistral AI

0.09¢

for a client proposal

$0.115 in · $0.345 out / 1M

32K context · released October 2025

Full page →

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: Step 3.5 Flash at 262K tokens — about 370 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

Voxtral Small 24B 2507

0.04¢

Step 3.5 Flash

0.04¢

Draft a client proposal from notes

5K in · 800 out

Voxtral Small 24B 2507

0.09¢

Step 3.5 Flash

0.09¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Voxtral Small 24B 2507

needs 155K ctx

Step 3.5 Flash

1.9¢

Analyze a 50-page legal contract

35K in · 1K out

Voxtral Small 24B 2507

needs 35K ctx

Step 3.5 Flash

0.44¢

Large architecture refactor

250K in · 3K out

Voxtral Small 24B 2507

needs 250K ctx

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

Voxtral Small 24B 2507

Step 3.5 Flash

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

Pricing

Voxtral Small 24B 2507

Step 3.5 Flash

Input / 1M tokens

$0.115

Output / 1M tokens

$0.345

Cached input / 1M

$0.011

—

Specs

Voxtral Small 24B 2507

Step 3.5 Flash

Provider

Mistral AI

StepFun

Released

October 2025

6 months ago

Context window

32K

262K

Max output

—

66K

Input

Text, Audio, and Files

Text

Output

Text

Reasoning

Answers directly

Shows its thinking

Knowledge cutoff

—

Try it with real numbers

2K tokens in · 500 tokens out.

Voxtral Small 24B 2507

Mistral AI

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, Step 3.5 Flash has the largest context window here — 262K tokens.

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

For images or files, Voxtral Small 24B 2507 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 →

Voxtral Small 24B 2507 pricing →Step 3.5 Flash pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, Voxtral Small 24B 2507 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?

Step 3.5 Flash — 262K tokens, about 370 pages.

Can I run Voxtral Small 24B 2507 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.