Assisters vs OpenAI
Compare Assisters API with OpenAI. Same OpenAI-compatible API, lower prices, pure pay-per-token with no subscriptions. Switch in minutes with no code changes.
Up to 80%
Cheaper than OpenAI
Pay-per-token
No subscriptions
<100ms
P95 Latency
99.9%
Uptime SLA
Pricing Comparison
Assisters offers significantly lower prices with pure pay-per-token billing. All prices per million tokens.
| Feature | Assisters | OpenAI |
|---|---|---|
| Pricing Model | Pay-per-token (no subscription) | Pay-as-you-go |
| Chat (Input) | $0.10/M tokens | $0.50/M tokens (GPT-4o-mini) |
| Chat (Output) | $0.20/M tokens | $1.50/M tokens (GPT-4o-mini) |
| Embeddings | $0.01/M tokens | $0.02/M tokens (text-embedding-3-small) |
| Credit Card Required | No | Yes |
Feature Comparison
Both platforms offer similar capabilities. Assisters adds document reranking and pure pay-per-token pricing.
| Feature | Assisters | OpenAI |
|---|---|---|
| OpenAI-Compatible API | ||
| Chat Completions | ||
| Text Embeddings | ||
| Content Moderation | ||
| Document Reranking | ||
| Pay-Per-Token (no subscription) | ||
| No Credit Card Signup | ||
| Usage Dashboard | ||
| API Key Management |
Performance Comparison
Assisters delivers enterprise-grade performance with faster latency.
| Metric | Assisters | OpenAI |
|---|---|---|
| Uptime SLA | 99.9% | 99.9% |
| P95 Latency | <100ms | ~200ms |
| Rate Limits | Account-based, up to 500 RPM | Up to 10,000 RPM |
| Global Edge Network | Yes | Yes |
Migrate in Minutes
Switch from OpenAI to Assisters with minimal code changes. Just update the base URL.
# Before (OpenAI)
from openai import OpenAI
client = OpenAI(api_key="sk-...")
# After (Assisters) - just change base_url and api_key
from openai import OpenAI
client = OpenAI(
api_key="your-assisters-key",
base_url="https://api.assisters.dev/v1"
)
# Same code works!
response = client.chat.completions.create(
model="assisters-chat-v1",
messages=[{"role": "user", "content": "Hello!"}]
)Frequently Asked Questions
Is Assisters API compatible with OpenAI?
Yes, Assisters API is fully OpenAI-compatible. You can use the same SDKs (openai-python, openai-node) by simply changing the base URL to api.assisters.dev. No code changes required beyond the URL and API key.
How much cheaper is Assisters compared to OpenAI?
Assisters is up to 80% cheaper than OpenAI for equivalent models. For example, Assisters Chat v1 costs $0.10/M input tokens vs OpenAI's GPT-4o-mini at $0.50/M. Assisters is pure pay-per-token with no subscriptions — you only pay for what you use.
What models does Assisters offer?
Assisters offers proprietary models including Assisters Chat v1/v2 for conversations, Assisters Embed v1 for embeddings, Assisters Moderation v1 for content safety, and Assisters Rerank v1 for document reranking.
Can I migrate from OpenAI to Assisters easily?
Yes, migration is simple. Install the Assisters SDK or use the OpenAI SDK with a custom base URL. Replace your API key with an Assisters key, update the base URL to api.assisters.dev, and optionally update model names. Most code works without changes.
How does Assisters pricing work?
Assisters is pure pay-per-token with no subscriptions or monthly plans. You pay a separate per-million-token rate for input and output of each model, deducted from a wallet balance shared across assisters.io and assisters.dev. No credit card is required to sign up.
Ready to Switch?
Pay only for what you use — per token, no subscriptions. No credit card required. Migrate from OpenAI in minutes.