Codestral 2508 vs Qwen3.5-27B

Codestral 2508 at $0.345 in and $1.03 out and Qwen3.5-27B at $0.224 in and $1.79 out — per million tokens, from the same wallet.

Codestral 2508

Mistral AI

0.26¢

for a client proposal

$0.345 in · $1.03 out / 1M

256K context · released August 2025

Full page →

Qwen3.5-27B

Qwen

0.26¢

for a client proposal

$0.224 in · $1.79 out / 1M

262K context · released 5 months ago

Full page →

Asking all both at once — identical prompt, identical context — costs about 0.51¢ for a typical client proposal.

At a glance

Cheapest input: Qwen3.5-27B at $0.224 per million tokens.
Cheapest output: Codestral 2508 at $1.03 per million tokens.
Largest context: Qwen3.5-27B 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

Codestral 2508

0.12¢

Qwen3.5-27B

0.13¢

Draft a client proposal from notes

5K in · 800 out

Codestral 2508

0.26¢

Qwen3.5-27B

0.26¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Codestral 2508

$0.06

Qwen3.5-27B

4.2¢

Analyze a 50-page legal contract

35K in · 1K out

Codestral 2508

1.3¢

Qwen3.5-27B

0.96¢

Large architecture refactor

250K in · 3K out

Codestral 2508

$0.09

Qwen3.5-27B

$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

Codestral 2508

Qwen3.5-27B

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

Pricing

Codestral 2508

Qwen3.5-27B

Input / 1M tokens

$0.345

$0.224

Output / 1M tokens

$1.03

$1.79

Cached input / 1M

$0.035

—

Specs

Codestral 2508

Qwen3.5-27B

Provider

Mistral AI

Qwen

Released

August 2025

5 months ago

Context window

256K

262K

Max output

—

66K

Input

Text and Files

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.

Codestral 2508

Mistral AI

0.12¢

for this task

57% input · 43% output

Full pricing →

Qwen3.5-27B

Qwen

0.13¢

for this task

33% input · 67% output

Full pricing →

All 2, same prompt and context: 0.26¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 1,958 of these.

Which should you pick?

For long documents, Qwen3.5-27B has the largest context window here — 262K tokens.

On price, Codestral 2508 is the cheapest of the two on a typical task, at about 0.26¢.

If you want to watch the model think, Qwen3.5-27B 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 →

Codestral 2508 pricing →Qwen3.5-27B pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, Codestral 2508 or Qwen3.5-27B?

On a typical client proposal (5K tokens in, 800 out): Codestral 2508 at 0.26¢; Qwen3.5-27B at 0.26¢. Long prompts can change the order when long-context rates apply.

Which has the largest context window?

Qwen3.5-27B — 262K tokens, about 370 pages.

Can I run Codestral 2508 and Qwen3.5-27B 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 0.51¢ for a typical task.

Ask both at once

Identical prompt, identical context, answers side by side — about 0.51¢ for a typical client proposal. Free to start, with $5 of credit.