Claude Sonnet 4.6 API
The everyday workhorse, half price.
Anthropic’s balanced reasoning model — $1.50 input / $7.50 output per million tokens through Hypereal. Same Sonnet 4.6, same 200K context, served through a drop-in OpenAI-compatible REST endpoint.
Drop into Claude Code or Codex in 60 seconds
Keep the CLI you already use. Swap one env var. Spend 50% less per token.
Sign up · 1 free credit
Email + password. 1 free coding credit lands in your account — enough to test from Claude Code or Codex right away. No card.
Create accountCopy your ck_ key
Dashboard → API Keys → New key. Drop it into Claude Code, Codex CLI, Cursor, Aider — anywhere that speaks OpenAI or Anthropic.
Open dashboardPlug into your CLI
Export ANTHROPIC_BASE_URL / OPENAI_BASE_URL and you keep your existing tooling. Snippet below pastes verbatim.
See all integrations# Use Claude Sonnet 4.6 inside Claude Code CLI
# 1. Grab your key at https://hypereal.cloud/manage-api-keys
# 2. Point Claude Code at Hypereal (Anthropic-compatible endpoint):
# NOTE: no /v1 — the Anthropic SDK appends /v1/messages itself.
export ANTHROPIC_BASE_URL="https://api.hypereal.cloud"
export ANTHROPIC_API_KEY="ck_..."
export ANTHROPIC_MODEL="claude-sonnet-4-6"
claude # same Claude Code, half the bill.
# Prefer raw curl? Same key works:
# curl https://hypereal.cloud/v1/chat/completions \
# -H "Authorization: Bearer ck_..." -H "Content-Type: application/json" \
# -d '{"model":"claude-sonnet-4-6","messages":[{"role":"user","content":"hi"}]}'New accounts get 1 free coding credit · enough to send a real Claude Code / Codex prompt before you spend a cent.
Claude Sonnet pricing comparison
Verified per-million-token pricing vs Anthropic direct
Buy once. Pay by token.
Prepaid coding credits for Opus / Sonnet / GPT-5.5. No subscription, no monthly reset, no vague usage bucket.
Questions, answered
Is this the real Sonnet 4.6 from Anthropic?
Yes. Same weights, same outputs, byte-for-byte equivalent to api.anthropic.com. Hypereal is an aggregator — we do not fine-tune or substitute the model.
How does Sonnet 4.6 compare to GPT-5.5 for my use case?
Sonnet 4.6 is generally stronger at long-context reasoning and instruction-following; GPT-5.5 is faster and cheaper for short interactions. Both are accessible through the same Hypereal API — switch by changing one parameter.
Can I use the Anthropic SDK or only OpenAI SDK?
Both. Anthropic SDK works natively with base_url override; OpenAI SDK works through the chat-completions adapter at https://api.hypereal.cloud/v1.
What about prompt caching?
Prompt caching is supported on Claude Sonnet 4.6 with the cache_control parameter, just like the official API. Hypereal returns cache usage metadata but does not deduct credits for cache creation or cache read tokens.
How does billing work?
Pay per token using credits. 100 credits = $1. Buy from $19.99, no subscription, credits never expire. Card and crypto accepted.
Drop in Sonnet 4.6 at half the cost
Switch your base_url, keep your existing SDK code, cut your bill in half. Credits start at $19.99.