Qwen-Plus vs Step 3.7 Flash

Qwen-Plus at $0.299 in and $0.897 out and Step 3.7 Flash at $0.230 in and $1.32 out — per million tokens, from the same wallet.

Qwen-Plus

Qwen

0.22¢

for a client proposal

$0.299 in · $0.897 out / 1M

1M context · released February 2025

Full page →

Step 3.7 Flash

StepFun

0.22¢

for a client proposal

$0.230 in · $1.32 out / 1M

256K context · released 2 months ago

Full page →

Asking all both at once — identical prompt, identical context — costs about 0.44¢ for a typical client proposal.

At a glance

Cheapest input: Step 3.7 Flash at $0.230 per million tokens.
Cheapest output: Qwen-Plus at $0.897 per million tokens.
Largest context: Qwen-Plus at 1M tokens — about 1,400 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

Qwen-Plus

0.1¢

Step 3.7 Flash

0.11¢

Draft a client proposal from notes

5K in · 800 out

Qwen-Plus

0.22¢

Step 3.7 Flash

0.22¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Qwen-Plus

5¢

Step 3.7 Flash

4.1¢

Analyze a 50-page legal contract

35K in · 1K out

Qwen-Plus

1.1¢

Step 3.7 Flash

0.94¢

Large architecture refactor

250K in · 3K out

Qwen-Plus

$0.08

Step 3.7 Flash

$0.06

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

Qwen-Plus

Step 3.7 Flash

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

Pricing

Qwen-Plus

Step 3.7 Flash

Input / 1M tokens

$0.299

$0.230

Output / 1M tokens

$0.897

$1.32

Cached input / 1M

$0.060

$0.046

Specs

Qwen-Plus

Step 3.7 Flash

Provider

Qwen

StepFun

Released

February 2025

2 months ago

Context window

256K

Max output

33K

256K

Input

Text

Text, Images, and Video

Output

Text

Reasoning

Answers directly

Shows its thinking

Knowledge cutoff

2025-03-31

—

Try it with real numbers

2K tokens in · 500 tokens out.

Qwen-Plus

Qwen

0.1¢

for this task

57% input · 43% output

Full pricing →

Step 3.7 Flash

StepFun

0.11¢

for this task

41% input · 59% output

Full pricing →

All 2, same prompt and context: 0.22¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 2,306 of these.

Which should you pick?

For long documents, Qwen-Plus has the largest context window here — 1M tokens.

On price, Step 3.7 Flash is the cheapest of the two on a typical task, at about 0.22¢.

For images or files, Step 3.7 Flash can read them directly; Qwen-Plus is text-only.

If you want to watch the model think, Step 3.7 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 →

Qwen-Plus pricing →Step 3.7 Flash pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, Qwen-Plus or Step 3.7 Flash?

On a typical client proposal (5K tokens in, 800 out): Step 3.7 Flash at 0.22¢; Qwen-Plus at 0.22¢. Long prompts can change the order when long-context rates apply.

Which has the largest context window?

Qwen-Plus — 1M tokens, about 1,400 pages.

Can I run Qwen-Plus and Step 3.7 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 0.44¢ for a typical task.

Ask both at once

Identical prompt, identical context, answers side by side — about 0.44¢ for a typical client proposal. Free to start, with $5 of credit.