Short answer
APIVAI serves the same Claude models in the same Anthropic Messages format as the official API, at lower per-token prices: as of 2026-10-06, 58–66% below Anthropic's list price, with GPT models on the same key.
The official Anthropic API is the better choice if you need features beyond the Messages and token-counting endpoints (Batch API, Files API and other new releases on day one), higher rate-limit tiers, an enterprise agreement or Anthropic's own data commitments.
How much does Claude cost on APIVAI vs Anthropic?
| Model | Anthropic list price (input / output per 1M) | APIVAI (input / output per 1M) | APIVAI below list |
|---|---|---|---|
| Claude Fable 5.1 | $10.00 / $50.00 | $4.21 / $21.02 | 58% |
| Claude Opus 5.5 | $4.00 / $20.00 | $1.39 / $6.96 | 65% |
| Claude Sonnet 5.5 | $2.00 / $10.00 | $0.69 / $3.47 | 66% |
| Claude Sonnet 4.6 | $3.00 / $15.00 | $1.04 / $5.22 | 65% |
| Claude Haiku 4.5 | $1.00 / $5.00 | $0.35 / $1.74 | 65% |
Prices as of 2026-10-06; see the pricing page for every model, including APIVAI cache-read and cache-write prices. Anthropic's own prices, including prompt caching and Batch API pricing, are on anthropic.com/pricing.
For a sense of scale: a month of Claude Code use with 600 requests averaging 4,000 input and 1,500 output tokens on Claude Opus 5.5 costs $27.60 at list price and $9.60 on APIVAI, before caching. One caveat: if your workload can run asynchronously, Anthropic's Batch API is billed below its standard rates, so compare that price with APIVAI's on-demand price before deciding. APIVAI does not offer a batch endpoint.
Feature comparison
| Feature | Anthropic API | APIVAI |
|---|---|---|
| Claude models | All current models, new ones on release day | Claude Fable, Opus, Sonnet and Haiku models listed on /pricing |
| GPT models on the same key | No | Yes |
| API formats | Anthropic Messages, plus OpenAI SDK compatibility; see their docs | Anthropic Messages and OpenAI Chat Completions / Responses |
| Endpoints | Messages, token counting, Message Batches, Files, Models, admin APIs and more | Messages, count_tokens, chat completions, responses, models |
| Rate limits | Usage tiers that rise with spend; custom limits by agreement | 60 requests per minute per key by default, higher on request |
| Billing model | Prepaid credits or invoicing; check their console for current options | Prepaid USD balance, per-token charges, no subscription |
| Payment methods | Card; enterprise invoicing | Cards, crypto (USDT and more), Alipay, WeChat Pay |
| Data handling | Anthropic's commercial terms and retention policies apply directly | Content is not stored or inspected; requests pass through to the model provider; usage metadata kept for billing |
| Contract | Direct agreement with Anthropic, enterprise options | Prepaid account, per-key budgets |
When APIVAI is the better choice
- You call Claude through the Messages API and your bill is mostly per-token usage at list price.
- You use Claude Code with an API key and want the same models for less. Only two environment variables change.
- You also use GPT models and want one balance, one dashboard and one key for both.
- You want to pay with crypto, Alipay or WeChat Pay, or top up in small amounts ($10 by card or crypto, ¥20 via Alipay / WeChat Pay).
- You want each key to have its own budget, for example one per project or teammate.
When the Anthropic API is the better choice
- You need endpoints APIVAI does not offer, such as the Batch API, Files API or admin APIs, or a new feature on the day Anthropic ships it.
- You need high throughput from the start. Anthropic's higher usage tiers allow far more than 60 requests per minute.
- Your company requires a direct contract with the model provider, invoicing, a data processing agreement or specific retention terms from Anthropic.
- Compliance rules say data may only go to the model provider itself, with no intermediary.
- You run large asynchronous jobs where Batch API pricing beats on-demand pricing.
If you are a Claude Pro or Max subscriber using Claude Code mainly through your plan, compare that fixed monthly fee and its usage limits with pay-as-you-go spending; this comparison walks through it.
How to switch from the Anthropic API to APIVAI
APIVAI uses the same Messages format, so code changes are limited to the base URL and the key. Note that the Anthropic-format base URL has no /v1.
For Claude Code:
export ANTHROPIC_BASE_URL="https://api.apivai.com" export ANTHROPIC_AUTH_TOKEN="your-apivai-key" unset ANTHROPIC_API_KEY # if set, it takes priority and causes 401 errors claude
Inside Claude Code, use /model to pick a model. The Claude Code setup guide covers Windows and persistent settings.
For the Anthropic Python SDK:
import anthropic
client = anthropic.Anthropic(
base_url="https://api.apivai.com",
api_key="your-apivai-key",
)
msg = client.messages.create(
model="claude-sonnet-4-6",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello"}],
)
print(msg.content[0].text)Model IDs are listed by GET /v1/models and on the pricing page. Streaming, tool use and images work as in the official API. More detail is on the Claude API proxy page and in the docs.
FAQ
Is APIVAI the same Claude as the official Anthropic API?
APIVAI serves the Claude model IDs listed on its pricing page and passes requests through to the model provider, using the same Messages format. What differs is the set of endpoints, rate limits, price and billing.
Does APIVAI support the Batch API or Files API?
No. APIVAI supports Messages, count_tokens, Chat Completions, Responses and the models list. For batch processing or file uploads, use the official Anthropic API.
How much cheaper is APIVAI than Anthropic?
As of 2026-10-06, Claude models on APIVAI are 58–66% below Anthropic's list price. Check the pricing page for each model.
What are the rate limits?
60 requests per minute per key by default; support can raise this on request. Anthropic's tiers depend on your spend, so check their docs if you need very high throughput.
Does APIVAI store my prompts?
No. APIVAI does not store or inspect request or response content. It keeps only usage metadata (model, token counts, cost, time) for billing.
Why do I get a 401 in Claude Code after switching?
Usually ANTHROPIC_API_KEY is still set and overrides ANTHROPIC_AUTH_TOKEN. Unset it, or check that the key has budget left.
Create an APIVAI account and point Claude Code at it in two lines.