$2.50 input / $15.00 output
Claude Sonnet 5
Anthropic · 1M context
$3.00 / $15.00 Similar, 2.5x context
Gemini 3.1 Pro
Google · 1M context
$2.00 / $12.00 -20%
DeepSeek V4 Pro
DeepSeek · 1M context
$0.435 / $0.87 -94%
Gemini 3.5 Flash
Google · 1M context
$1.50 / $9.00 -40%
Mistral Small 4
Mistral · 128K context
$0.15 / $0.60 -98%

💰 Calculate Your Savings

See how much you'd save by switching from GPT-5.4 to the cheapest alternative

$118,530/yr
savings by switching to DeepSeek V4 Pro
GPT-5.4: $120,000/yr → DeepSeek V4 Pro: $1,470/yr

The 5 Best GPT-5.4 Alternatives (Ranked by Value)

1. Claude Sonnet 5

Anthropic · Mid Tier · 1M Context
Similar price, 2.5x context
Input: $3.00/M Output: $15.00/M Context: 1M
Full comparison: GPT-5.4 vs Claude Sonnet 5 →

2. Gemini 3.1 Pro

Google · Premium Tier · 1M Context
Save up to 20%
Input: $2.00/M Output: $12.00/M Context: 1M
Full comparison: GPT-5.4 vs Gemini 3.1 Pro →

3. DeepSeek V4 Pro

DeepSeek · Budget Tier · 1M Context
Save up to 94%
Input: $0.435/M Output: $0.87/M Context: 1M
Full comparison: GPT-5.4 vs DeepSeek V4 Pro →

4. Gemini 3.5 Flash

Google · Mid Tier · 1M Context
Save up to 40%
Input: $1.50/M Output: $9.00/M Context: 1M
Full comparison: GPT-5.4 vs Gemini 3.5 Flash →

5. Mistral Small 4

Mistral · Budget Tier · 128K Context
Save up to 98%
Input: $0.10/M Output: $0.30/M Context: 128K
Full comparison: GPT-5.4 vs Mistral Small →

Why Teams Are Switching Away from GPT-5.4

💸

Cost

GPT-5.4 output tokens cost $15/M — 17x more than DeepSeek V4 Pro for similar quality.

📏

Context Limits

GPT-5.4's 400K context is smaller than the 1M offered by Gemini, DeepSeek, and Claude.

🔄

Vendor Lock-in

Multi-provider strategies reduce risk. Most alternatives support OpenAI-compatible APIs.

Speed

Budget models like Gemini 3.5 Flash and DeepSeek V4 Pro offer faster response times.

Frequently Asked Questions

What is the cheapest GPT-5.4 alternative?
Mistral Small 4 is the cheapest at $0.15/$0.60 per million tokens — 96% cheaper on input and 98% cheaper on output. For a model with similar capabilities, DeepSeek V4 Pro at $0.435/$0.87 offers the best balance of quality and cost savings (83-94% cheaper).
How much cheaper is DeepSeek V4 Pro vs GPT-5.4?
DeepSeek V4 Pro costs $0.435 input / $0.87 output per million tokens, compared to GPT-5.4's $2.5/$15. That's 83% cheaper on input and 94% cheaper on output. For a typical workload of 1M input + 500K output tokens per month, you'd save approximately $118,530 per year.
Is Gemini 3.1 Pro a good replacement for GPT-5.4?
Gemini 3.1 Pro is a strong alternative at $2/$12 per million tokens — 20% cheaper on input and 20% cheaper on output than GPT-5.4. It offers 1M token context (vs GPT-5.4's 400K) and competitive quality for most tasks.
Can I switch from GPT-5.4 without rewriting my code?
Mostly yes. Most alternative providers offer OpenAI-compatible APIs, so switching often requires just changing the API endpoint and key. DeepSeek, Together (Llama), and several others support the OpenAI API format directly.
What's the best GPT-5.4 alternative for coding tasks?
For coding tasks, Claude Sonnet 5 ($3/$15) offers strong code generation with 1M context. For budget-conscious teams, DeepSeek V4 Pro ($0.435/$0.87) offers surprisingly strong coding performance at 94% less cost on output tokens.

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