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Home/GPT-5.4 vs Claude 4 Sonnet
Top recommendationHead-to-Head

GPT-5.4 vs Claude 4 Sonnet

GPT-5.4 is the better default if you need coding and reasoning strength. Claude 4 Sonnet is the better choice if your work is mostly writing, editing, and tone-sensitive content.

Choose GPT-5.4 for technical and decision-heavy work. Choose Claude 4 Sonnet for premium writing and polished content workflows.

Last updated Mar 20, 2026
Recommendation

GPT-5.4

GPT-5.4 is the safer overall recommendation because it covers more high-stakes use cases well, even though Claude 4 Sonnet wins on writing quality.

View model
OpenAIPremium
Input cost
$14.00/1M
Context
256k tokens
Speed
Balanced

Why this page recommends it

GPT-5.4 is better for coding, reasoning, and harder decision support.

Claude 4 Sonnet is better for writing, editing, and tone-sensitive work.

Most teams should use both if they have meaningful needs in both categories.

Who should use what

Pick GPT if mistakes are expensive and technical quality matters most.

Pick Claude if the work is communication-heavy and voice-sensitive.

Pair them when the organization has both engineering and content-heavy functions.

Comparison table

Compare the tradeoffs

This comparison focuses on the models most likely to answer this search intent well, not every model in the directory.

OpenAIPremium

GPT-5.4

Best overall model for high-stakes coding and reasoning work.

Best for
Premium coding, complex reasoning, and decision-heavy workflows
Speed
Balanced
Input cost
$14.00/1M
Context
256k tokens
AnthropicPremium

Claude 4 Sonnet

Best premium writing model for clarity, tone, and long-form work.

Best for
Writing, editing, and structured communication
Speed
Balanced
Input cost
$8.00/1M
Context
200k tokens
OpenAIBalanced

GPT-5.2 Mini

High-value model for teams that want lower cost without losing versatility.

Best for
Budget technical workflows
Speed
Fast
Input cost
$1.20/1M
Context
128k tokens
AnthropicBudget

Claude 4 Haiku

Best low-cost writing option for fast-moving content teams.

Best for
Fast budget writing
Speed
Very fast
Input cost
$0.80/1M
Context
128k tokens
ModelProviderBest forInputOutputContextSpeed
GPT-5.4
Best overall model for high-stakes coding and reasoning work.
OpenAIPremium coding, complex reasoning, and decision-heavy workflows$14.00/1M$42.00/1M256k tokensBalanced
Claude 4 Sonnet
Best premium writing model for clarity, tone, and long-form work.
AnthropicWriting, editing, and structured communication$8.00/1M$24.00/1M200k tokensBalanced
GPT-5.2 Mini
High-value model for teams that want lower cost without losing versatility.
OpenAIBudget technical workflows$1.20/1M$4.80/1M128k tokensFast
Claude 4 Haiku
Best low-cost writing option for fast-moving content teams.
AnthropicFast budget writing$0.80/1M$4.00/1M128k tokensVery fast

Recommended comparisons

The fastest way to see where the recommendation shifts when your priority changes.

OpenAIPremiumTop recommendation

GPT-5.4

Best overall model for high-stakes coding and reasoning work.

Best use case
Premium coding, complex reasoning, and decision-heavy workflows
Input
$14.00/1M
Pricing
Premium
Speed
Balanced
Context
256k tokens
Best overallCoding leaderReasoning
AnthropicPremiumOption 2

Claude 4 Sonnet

Best premium writing model for clarity, tone, and long-form work.

Best use case
Writing, editing, and structured communication
Input
$8.00/1M
Pricing
Premium
Speed
Balanced
Context
200k tokens
Writing leaderLong contextEditorial
OpenAIBalancedOption 3

GPT-5.2 Mini

High-value model for teams that want lower cost without losing versatility.

Best use case
Budget technical workflows
Input
$1.20/1M
Pricing
Balanced
Speed
Fast
Context
128k tokens
Budget codingFastOpenAI
AnthropicBudgetOption 4

Claude 4 Haiku

Best low-cost writing option for fast-moving content teams.

Best use case
Fast budget writing
Input
$0.80/1M
Pricing
Budget
Speed
Very fast
Context
128k tokens
Cheap writingFastAnthropic

Pros

Best-in-class code editing and multi-step reasoning

Excellent at technical planning, debugging, and architecture tradeoffs

Stronger all-around default than older flagship models

Cons

Premium pricing for teams with heavy prompt volume

More than many users need for lightweight operational tasks

Internal links for the next step

Browse all modelsCompare pricingView GPT-5.4View Claude 4 SonnetView GPT-5.2 MiniGPT vs Claude vs GeminiBest AI for codingBest AI for writingWhich AI should I use?

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FAQ

What is the best AI model right now?

GPT-5.4 is still the strongest all-around premium model in this directory when you need the safest default across coding, reasoning, and business-critical work.

Which AI is best for coding?

GPT-5.4 is the best coding model in this directory, while Codestral 25.01 is the strongest low-cost coding specialist.

Which AI is cheapest?

Gemini 2.5 Flash is the best cheap default for most teams, while Llama 4 Scout is the absolute cheapest by list price in this directory.

Which AI is fastest?

Gemini 2.5 Flash and Claude 4 Haiku are the fastest broad-use models in this directory for most prompt-heavy workflows.

Which AI is best for business use?

Most businesses should pair one premium model like GPT-5.4 with one cheaper volume model like Gemini 2.5 Flash instead of forcing one model to do everything.