Gemini 2.5 Flash vs Mistral Medium 3

Gemini 2.5 Flash at $0.345 in and $2.88 out and Mistral Medium 3 at $0.460 in and $2.30 out — per million tokens, from the same wallet.

Gemini 2.5 Flash

Google

0.4¢

for a client proposal

$0.345 in · $2.88 out / 1M

1.05M context · released June 2025

Full page →

Mistral Medium 3

Mistral AI

0.41¢

for a client proposal

$0.460 in · $2.30 out / 1M

131K context · released May 2025

Full page →

Asking all both at once — identical prompt, identical context — costs about 0.82¢ for a typical client proposal.

At a glance

Cheapest input: Gemini 2.5 Flash at $0.345 per million tokens.
Cheapest output: Mistral Medium 3 at $2.30 per million tokens.
Largest context: Gemini 2.5 Flash at 1.05M tokens — about 1,500 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

Gemini 2.5 Flash

0.21¢

Mistral Medium 3

0.21¢

Draft a client proposal from notes

5K in · 800 out

Gemini 2.5 Flash

0.4¢

Mistral Medium 3

0.41¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Gemini 2.5 Flash

$0.06

Mistral Medium 3

needs 155K ctx

Analyze a 50-page legal contract

35K in · 1K out

Gemini 2.5 Flash

1.5¢

Mistral Medium 3

1.8¢

Large architecture refactor

250K in · 3K out

Gemini 2.5 Flash

$0.09

Mistral Medium 3

needs 250K ctx

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

Gemini 2.5 Flash

Mistral Medium 3

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

Pricing

Gemini 2.5 Flash

Mistral Medium 3

Input / 1M tokens

$0.345

$0.460

Output / 1M tokens

$2.88

$2.30

Cached input / 1M

$0.035

$0.046

Web search

1.6¢ / search

—

Specs

Gemini 2.5 Flash

Mistral Medium 3

Provider

Google

Mistral AI

Released

June 2025

May 2025

Context window

1.05M

131K

Max output

66K

—

Input

Files, Images, Text, Audio, and Video

Text, Images, and Files

Output

Text

Reasoning

Shows its thinking

Answers directly

Knowledge cutoff

2025-01-31

2025-03-31

Try it with real numbers

2K tokens in · 500 tokens out.

Gemini 2.5 Flash

Google

0.21¢

for this task

32% input · 68% output

Full pricing →

Mistral Medium 3

Mistral AI

0.21¢

for this task

44% input · 56% output

Full pricing →

All 2, same prompt and context: 0.42¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 1,191 of these.

Which should you pick?

For long documents, Gemini 2.5 Flash has the largest context window here — 1.05M tokens.

On price, Gemini 2.5 Flash is the cheapest of the two on a typical task, at about 0.4¢.

If you want to watch the model think, Gemini 2.5 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 →

Gemini 2.5 Flash pricing →Mistral Medium 3 pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, Gemini 2.5 Flash or Mistral Medium 3?

On a typical client proposal (5K tokens in, 800 out): Gemini 2.5 Flash at 0.4¢; Mistral Medium 3 at 0.41¢. Long prompts can change the order when long-context rates apply.

Which has the largest context window?

Gemini 2.5 Flash — 1.05M tokens, about 1,500 pages.

Can I run Gemini 2.5 Flash and Mistral Medium 3 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 0.82¢ for a typical task.

Ask both at once

Identical prompt, identical context, answers side by side — about 0.82¢ for a typical client proposal. Free to start, with $5 of credit.