What is the difference between DeepSeek V4 Pro 0813 and Mercury 2?

DeepSeek V4 Pro 0813 is developed by DeepSeek while Mercury 2 is developed by Inception. DeepSeek V4 Pro 0813 has a 1.0M token context window vs Mercury 2's 128K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek V4 Pro 0813 or Mercury 2?

It depends on your use case. DeepSeek V4 Pro 0813 and Mercury 2 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does DeepSeek V4 Pro 0813 cost compared to Mercury 2?

DeepSeek V4 Pro 0813 costs $0.66/M input tokens and Mercury 2 costs $0.25/M input tokens. Mercury 2 is $0.41/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare DeepSeek V4 Pro 0813 and Mercury 2 on Rival?

This page shows a side-by-side comparison of DeepSeek V4 Pro 0813 and Mercury 2 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

What is the difference between DeepSeek V4 Pro 0813 and Mercury 2?

DeepSeek V4 Pro 0813 is developed by DeepSeek while Mercury 2 is developed by Inception. DeepSeek V4 Pro 0813 has a 1.0M token context window vs Mercury 2's 128K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek V4 Pro 0813 or Mercury 2?

It depends on your use case. DeepSeek V4 Pro 0813 and Mercury 2 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does DeepSeek V4 Pro 0813 cost compared to Mercury 2?

DeepSeek V4 Pro 0813 costs $0.66/M input tokens and Mercury 2 costs $0.25/M input tokens. Mercury 2 is $0.41/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare DeepSeek V4 Pro 0813 and Mercury 2 on Rival?

This page shows a side-by-side comparison of DeepSeek V4 Pro 0813 and Mercury 2 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Aug 2026

DeepSeek V4 Pro 0813vsMercury 2

Mercury 2 is cheaper than DeepSeek V4 Pro 0813 at $0.25/M vs $0.66/M input tokens.

DeepSeek V4 Pro 0813 and Mercury 2 compared across 53 shared prompts
Spec	DeepSeek V4 Pro 0813	Mercury 2
Input price	$0.66/M tokens	$0.25/M tokens
Output price	$1.98/M tokens	$0.75/M tokens
Context window	1.0M tokens	128K tokens
Released	Aug 2026	Mar 2026

Our Verdict

DeepSeek V4 Pro 0813

Mercury 2Runner-up

Not enough votes to call it. On the specs, DeepSeek V4 Pro 0813 has the edge: bigger model tier, newer, bigger context window, major provider backing.

Slight edge

What do DeepSeek V4 Pro 0813 and Mercury 2 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

DeepSeek V4 Pro 0813

Input

$0.66

Output

$1.98

Mercury 2

Input

$0.25

2.6× cheaper

Output

$0.75

2.6× cheaper

Mercury 2 is cheaper on both — 2.6× input, 2.6× output

Writing DNA

Style Comparison

Similarity

56%

Mercury 2 uses 8.2x more emoji

DeepSeek V4 Pro 0813

Mercury 2

57%Vocabulary53%

17wSentence Length22w

0.49Hedging0.40

3.2Bold6.6

3.2Lists2.6

0.00Emoji0.08

1.08Headings0.87

0.04Transitions0.14

Based on 27 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

DeepSeek V4 Pro 0813 vs MiniMax M3New provider

DeepSeek V4 Pro 0813 vs Ox AlphaNew provider

Mercury 2 vs Claude Opus 4New provider

Mercury 2 vs Claude Opus 4.1New provider

DeepSeek V4 Pro 0813 vs PaLM 2 ChatNew provider

DeepSeek V4 Pro 0813 vs Polaris AlphaNew provider

DeepSeek V4 Pro 0813 vs Pony AlphaNew provider

DeepSeek V4 Pro 0813 vs Quasar AlphaNew provider

Updated Aug 2026

DeepSeek V4 Pro 0813vsMercury 2

Mercury 2 is cheaper than DeepSeek V4 Pro 0813 at $0.25/M vs $0.66/M input tokens.

DeepSeek V4 Pro 0813 and Mercury 2 compared across 53 shared prompts
Spec	DeepSeek V4 Pro 0813	Mercury 2
Input price	$0.66/M tokens	$0.25/M tokens
Output price	$1.98/M tokens	$0.75/M tokens
Context window	1.0M tokens	128K tokens
Released	Aug 2026	Mar 2026

Our Verdict

DeepSeek V4 Pro 0813

Mercury 2Runner-up

Not enough votes to call it. On the specs, DeepSeek V4 Pro 0813 has the edge: bigger model tier, newer, bigger context window, major provider backing.

Slight edge

What do DeepSeek V4 Pro 0813 and Mercury 2 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

DeepSeek V4 Pro 0813

Input

$0.66

Output

$1.98

Mercury 2

Input

$0.25

2.6× cheaper

Output

$0.75

2.6× cheaper

Mercury 2 is cheaper on both — 2.6× input, 2.6× output

Writing DNA

Style Comparison

Similarity

56%

Mercury 2 uses 8.2x more emoji

DeepSeek V4 Pro 0813

Mercury 2

57%Vocabulary53%

17wSentence Length22w

0.49Hedging0.40

3.2Bold6.6

3.2Lists2.6

0.00Emoji0.08

1.08Headings0.87

0.04Transitions0.14

Based on 27 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

DeepSeek V4 Pro 0813 vs MiniMax M3New provider

DeepSeek V4 Pro 0813 vs Ox AlphaNew provider

Mercury 2 vs Claude Opus 4New provider

Mercury 2 vs Claude Opus 4.1New provider

DeepSeek V4 Pro 0813 vs PaLM 2 ChatNew provider

DeepSeek V4 Pro 0813 vs Polaris AlphaNew provider

DeepSeek V4 Pro 0813 vs Pony AlphaNew provider

DeepSeek V4 Pro 0813 vs Quasar AlphaNew provider