What is the difference between GPT-5.1 Chat and Nova Premier 1.0?

GPT-5.1 Chat is developed by OpenAI while Nova Premier 1.0 is developed by Amazon. GPT-5.1 Chat has a 128K token context window vs Nova Premier 1.0's 1.0M. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1 Chat or Nova Premier 1.0?

It depends on your use case. GPT-5.1 Chat and Nova Premier 1.0 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How much does GPT-5.1 Chat cost compared to Nova Premier 1.0?

GPT-5.1 Chat costs $1.25/M input tokens and Nova Premier 1.0 costs $2.5/M input tokens. GPT-5.1 Chat is $1.25/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 GPT-5.1 Chat and Nova Premier 1.0 on Rival?

This page shows a side-by-side comparison of GPT-5.1 Chat and Nova Premier 1.0 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 GPT-5.1 Chat and Nova Premier 1.0?

GPT-5.1 Chat is developed by OpenAI while Nova Premier 1.0 is developed by Amazon. GPT-5.1 Chat has a 128K token context window vs Nova Premier 1.0's 1.0M. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1 Chat or Nova Premier 1.0?

It depends on your use case. GPT-5.1 Chat and Nova Premier 1.0 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How much does GPT-5.1 Chat cost compared to Nova Premier 1.0?

GPT-5.1 Chat costs $1.25/M input tokens and Nova Premier 1.0 costs $2.5/M input tokens. GPT-5.1 Chat is $1.25/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 GPT-5.1 Chat and Nova Premier 1.0 on Rival?

This page shows a side-by-side comparison of GPT-5.1 Chat and Nova Premier 1.0 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 Nov 2025

GPT-5.1 ChatvsNova Premier 1.0

GPT-5.1 Chat is cheaper than Nova Premier 1.0 at $1.25/M vs $2.5/M input tokens.

GPT-5.1 Chat and Nova Premier 1.0 compared across 51 shared prompts
Spec	GPT-5.1 Chat	Nova Premier 1.0
Input price	$1.25/M tokens	$2.5/M tokens
Output price	$10/M tokens	$12.5/M tokens
Context window	128K tokens	1.0M tokens
Released	Nov 2025	Oct 2025
SWE-bench Verified	76.3%	42.4%

Our Verdict

GPT-5.1 Chat

Nova Premier 1.0

Not enough votes to call it. On the specs, nothing separates them.

GPT-5.1 Chat takes Image Generation.

Too close to call

What do GPT-5.1 Chat and Nova Premier 1.0 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5.1 Chat

Input

$1.25

2.0× cheaper

Output

$10.00

1.3× cheaper

Nova Premier 1.0

Input

$2.50

Output

$12.50

GPT-5.1 Chat is cheaper on both — 2.0× input, 1.3× output

Writing DNA

Style Comparison

Similarity

39%

Nova Premier 1.0 uses 54.5x more headings

GPT-5.1 Chat

Nova Premier 1.0

73%Vocabulary56%

18wSentence Length39w

0.45Hedging0.90

1.1Bold4.3

2.4Lists5.9

0.00Emoji0.00

0.00Headings0.54

0.06Transitions0.21

Based on 15 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.1 Chat vs MiniMax M3New provider

GPT-5.1 Chat vs Ox AlphaNew provider

GPT-5.1 Chat vs Claude Sonnet 4New provider

GPT-5.1 Chat vs Grok 4New provider

GPT-5.1 Chat vs Grok 4 Fast (free)New provider

GPT-5.1 Chat vs Grok 4.1 FastNew provider

GPT-5.1 Chat vs Grok 4.20 BetaNew provider

GPT-5.1 Chat vs Grok 4.20 Multi-Agent BetaNew provider

Updated Nov 2025

GPT-5.1 ChatvsNova Premier 1.0

GPT-5.1 Chat is cheaper than Nova Premier 1.0 at $1.25/M vs $2.5/M input tokens.

GPT-5.1 Chat and Nova Premier 1.0 compared across 51 shared prompts
Spec	GPT-5.1 Chat	Nova Premier 1.0
Input price	$1.25/M tokens	$2.5/M tokens
Output price	$10/M tokens	$12.5/M tokens
Context window	128K tokens	1.0M tokens
Released	Nov 2025	Oct 2025
SWE-bench Verified	76.3%	42.4%

Our Verdict

GPT-5.1 Chat

Nova Premier 1.0

Not enough votes to call it. On the specs, nothing separates them.

GPT-5.1 Chat takes Image Generation.

Too close to call

What do GPT-5.1 Chat and Nova Premier 1.0 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5.1 Chat

Input

$1.25

2.0× cheaper

Output

$10.00

1.3× cheaper

Nova Premier 1.0

Input

$2.50

Output

$12.50

GPT-5.1 Chat is cheaper on both — 2.0× input, 1.3× output

Writing DNA

Style Comparison

Similarity

39%

Nova Premier 1.0 uses 54.5x more headings

GPT-5.1 Chat

Nova Premier 1.0

73%Vocabulary56%

18wSentence Length39w

0.45Hedging0.90

1.1Bold4.3

2.4Lists5.9

0.00Emoji0.00

0.00Headings0.54

0.06Transitions0.21

Based on 15 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.1 Chat vs MiniMax M3New provider

GPT-5.1 Chat vs Ox AlphaNew provider

GPT-5.1 Chat vs Claude Sonnet 4New provider

GPT-5.1 Chat vs Grok 4New provider

GPT-5.1 Chat vs Grok 4 Fast (free)New provider

GPT-5.1 Chat vs Grok 4.1 FastNew provider

GPT-5.1 Chat vs Grok 4.20 BetaNew provider

GPT-5.1 Chat vs Grok 4.20 Multi-Agent BetaNew provider