Cheapest Claude API in 2026 — Up to 91% Below Anthropic | LLMsRelay
Cheapest way to access Claude API: LLMsRelay sells Anthropic-equivalent usage at up to 91% below Anthropic's retail price — $45 buys $500 of usage. From $5.
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Claude API Pricing Overview
Claude API pricing is based on tokens — the units of text processed by the model. Costs vary significantly depending on which model you use, how you structure prompts, and whether you leverage caching. Here's how to minimize your Claude API costs.
Price Comparison by Provider
| Provider | What you pay | What you get | Effective saving | Payment Methods |
|---|---|---|---|---|
| Anthropic Direct | $500 | $500 of usage | — | Credit card |
| LLMsRelay | $45 | $500 of usage | ~91% cheaper | Card & Crypto |
| AWS Bedrock | Retail rate | $500 of usage | — | AWS billing |
| Google Vertex AI | Retail rate | $500 of usage | — | GCP billing |
LLMsRelay is the cheapest of the four — same models and APIs as Anthropic, at a fraction of the price.
5 Ways to Cut Claude API Costs
1. Use the Right Model
Don't use Opus for simple tasks. Haiku costs 25× less than Opus for input tokens and handles classification, extraction, and simple Q&A perfectly well.
| Model | Anthropic retail input | Anthropic retail output | Best For |
|---|---|---|---|
| Haiku 4.5 | $1/1M | $5/1M | Simple tasks, classification |
| Sonnet 4.6 | $3/1M | $15/1M | General coding, analysis |
| Opus 4.7 | $5/1M | $25/1M | Complex reasoning, architecture |
At LLMsRelay you access all models via your credit balance — $45 covers $500 of usage at Anthropic's retail rates. Cache write = 1.25× input, cache read = 0.10× input.
2. Enable Prompt Caching
If you send the same system prompt repeatedly, enable prompt caching. Cached tokens cost 90% less than fresh input tokens. This is especially impactful for IDE integrations where system prompts are constant.
3. Optimize Prompt Length
Shorter prompts = lower costs. Remove unnecessary context, examples, and instructions. Use structured formats (JSON, lists) instead of verbose natural language when possible.
4. Set Max Tokens
Always set max_tokens to limit response length. Without it, Claude may generate unnecessarily long responses, wasting output tokens (which cost 5× more than input).
5. Use Per-Key Limits
LLMsRelay lets you set credit limits per API key. This prevents runaway costs from bugs or misconfigured scripts. Set a daily or total limit per key from your dashboard.
Why LLMsRelay for Budget-Conscious Users
- No cloud platform overhead — no AWS/GCP account, no complex IAM setup
- Instant setup — start in under 2 minutes
- Per-key spending limits — built-in cost control
- Flexible payments — pay with card or crypto
- Same pricing — identical per-token rates as Anthropic direct