How much cheaper is Claude Sonnet 5 than GPT-5?

Claude Sonnet 5 costs $3/$15 per 1M tokens while GPT-5 costs $1.25/$10. GPT-5 is actually 58% cheaper on input and 33% cheaper on output. For 1M input + 500K output tokens/month, Sonnet 5 costs $10.50 vs GPT-5's $6.25 — GPT-5 saves $4.25/month.

When should I choose GPT-5 over Sonnet 5?

Choose GPT-5 ($1.25/$10) when cost efficiency matters: it's 58% cheaper on input. Choose Sonnet 5 ($3/$15) when you need the latest Anthropic capabilities, better code generation, or are already in the Anthropic ecosystem. GPT-5 is the better value; Sonnet 5 is the newer model.

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Mid Premium

Claude Sonnet 5 vs GPT-5

Q: Is Sonnet 5 better than GPT-5?

Sonnet 5 ($3/$15) and GPT-5 ($1.25/$10) are both excellent models. Sonnet 5 offers slightly better code generation and reasoning. GPT-5 is more cost-effective at 58% lower input cost. Both have 272K+ context windows. Sonnet 5 is newer with introductory pricing; GPT-5 is battle-tested.

Anthropic's newest mid-tier takes on OpenAI's established flagship. Sonnet 5 at $3/$15 is newer but costs 58% more on input than GPT-5 at $1.25/$10. Which offers better value for your use case?

Pricing data verified: Jul 1, 2026

Specification	Claude Sonnet 5 (Anthropic)	GPT-5 (OpenAI)
Input Price (per 1M tokens)	$3.00	$1.25
Output Price (per 1M tokens)	$15.00	$10.00
Context Window	1M tokens	272K tokens
Tier	Mid	Premium
Provider	Anthropic	OpenAI

Calculate Your Exact Costs

Newer doesn't always mean pricier — see which model offers better value for your workload.

Input Tokens per Request

Output Tokens per Request

Requests per Day

Days per Month

Anthropic

Claude Sonnet 5

$0.00

per month

Input cost

Output cost

Cost per request

Requests/month

OpenAI

GPT-5

$0.00

per month

Input cost

Output cost

Cost per request

Requests/month

Other Mid-Tier and Premium Models

GPT-5.5

OpenAI

$5 / $30 per 1M

1.05M context

Claude Opus 4.8

Anthropic

$5 / $25 per 1M

1M context

Gemini 3.1 Pro

Google

$2 / $12 per 1M

1M context

Which Model for Which Use Case?

Code Generation

Both handle code well. Sonnet 5 at $3/$15 is slightly newer with better code generation. GPT-5 at $1.25/$10 is 58% cheaper on input. For cost-effective coding, GPT-5 wins. For cutting-edge code quality, Sonnet 5 edges ahead.

Budget code: GPT-5 | Quality code: Sonnet 5

Content Generation

Blog posts, marketing copy, documentation. GPT-5 at $1.25/$10 is 33% cheaper on output, making it ideal for bulk content. Sonnet 5 at $3/$15 produces more nuanced prose for premium content.

Bulk content: GPT-5 | Premium content: Sonnet 5

Complex Analysis

Research synthesis, multi-step reasoning, nuanced analysis. Sonnet 5 at $3/$15 excels at deep reasoning tasks. GPT-5 at $1.25/$10 handles complex analysis well at lower cost. For most analysis tasks, GPT-5 offers better value.

Value analysis: GPT-5 | Deep analysis: Sonnet 5

High-Volume Batch Processing

At 10M input + 5M output tokens/month, Sonnet 5 costs $105 vs GPT-5's $62.50 — saving $42.50/month. For batch workloads, GPT-5's 58% lower input cost makes it the clear winner.

Better value: GPT-5

Comparing Anthropic and OpenAI models?

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Frequently Asked Questions

How much cheaper is GPT-5 than Sonnet 5?

GPT-5 costs $1.25/$10 per 1M tokens vs Sonnet 5 at $3/$15 — 58% cheaper on input, 33% cheaper on output. At 1M input + 500K output tokens/month, that's $6.25 vs $10.50, saving $4.25/month. At 10M input + 5M output, savings reach $42.50/month.

Is Sonnet 5 better than GPT-5?

Sonnet 5 ($3/$15) is newer with slightly better code generation and reasoning. GPT-5 ($1.25/$10) is more cost-effective at 58% lower input cost. For most workloads, GPT-5 offers better value. Choose Sonnet 5 when you need the latest Anthropic capabilities or are in the Anthropic ecosystem.

Does Sonnet 5 have introductory pricing?

Yes. Claude Sonnet 5 offers introductory pricing of $2/$10 per MTok through August 31, 2026 — 33% cheaper than standard. After August 31, it returns to $3/$15. GPT-5 has no announced introductory pricing at $1.25/$10.