Blog · AI Pricing
Cheaper Alternative to GPT
GPT-5 costs $3.00/M input and $12.00/M output. Chinese LLMs offer comparable quality at 70-95% less. Here is the pricing breakdown and how to switch without changing your code.
Why developers look for a cheaper alternative to GPT
OpenAI's GPT-5 pricing is $3.00 per million input tokens and $12.00 per million output tokens. For a developer processing 100M input tokens per month, that is $300 just for input — before any output costs. The same workload on DeepSeek V4 Flash costs $22 at off-peak rates. The savings compound quickly when you scale.
Chinese LLM providers have been competing aggressively on price. DeepSeek, Qwen, MiMo, and GLM all offer capable models at a fraction of GPT-5's price. And with an OpenAI-compatible gateway like AI24X, you can switch between them without changing a line of code.
Price comparison: GPT-5 vs alternatives
| Model | Input / 1M tokens | Output / 1M tokens | Savings vs GPT-5 |
|---|---|---|---|
| MiMo V2.5 Pro | $0.14 | $0.28 | 95% |
| DeepSeek Flash (off-peak) | $0.22 | $0.66 | 93% |
| DeepSeek Flash (peak) | $0.44 | $1.32 | 85% |
| Kimi K3 | $0.55 | $2.20 | 82% |
| DeepSeek Pro (off-peak) | $0.66 | $1.98 | 78% |
| Qwen Max | $0.88 | $0.88 | 71% |
| GLM-4-Plus | $1.00 | $1.00 | 67% |
| GPT-5 | $3.00 | $12.00 | — |
Real-world cost example
A typical AI application processing 50M input + 10M output tokens per month:
| Provider | Monthly cost |
|---|---|
| GPT-5 | $270 |
| DeepSeek Flash (peak) | $35 |
| MiMo V2.5 Pro | $10 |
| Qwen Max | $53 |
Switching from GPT-5 to a cheaper alternative saves $235-$260 per month for the same workload.
How to switch without changing code
The OpenAI SDK works with any OpenAI-compatible endpoint. To switch from GPT-5 to a cheaper alternative:
from openai import OpenAI
# Before: GPT-5 direct
# client = OpenAI(api_key="sk-openai-key")
# After: AI24X gateway — one key for all cheaper alternatives
client = OpenAI(
base_url="https://api.ai24x.com/v1",
api_key="sk-your-gateway-key"
)
# Call DeepSeek Flash at $0.22/M instead of GPT-5 at $3.00/M
response = client.chat.completions.create(
model="flash",
messages=[{"role": "user", "content": "Hello!"}]
)
No code changes. No SDK swap. Just update base_url and api_key.
Quality considerations
Chinese LLMs have improved significantly. DeepSeek V4 Flash scores competitively on benchmarks while costing 93% less than GPT-5. MiMo V2.5 Pro offers strong performance for code and reasoning tasks. Qwen Max excels at multilingual and long-context scenarios. For most production workloads — chat, classification, summarization, code generation — these models deliver comparable results at a fraction of the cost.
For tasks that genuinely need GPT-5's frontier capability, you can keep it as a fallback through the same gateway without adding a second integration.
Related: One API for All LLMs · DeepSeek API Pricing 2026 · AI API Cost Basics · OpenAI Compatible API