KeyoAPI
Claude API Pricing — KeyoAPI vs Typical Anthropic List Rates
Looking up Claude API pricing usually means you already want Anthropic-class chat or agents, but need clearer unit economics — or one prepaid balance that also covers GPT-class, DeepSeek, Whisper, and vision. This page compares indicative Keyo sell rates with typical public Anthropic list figures and shows how to call Claude-class IDs on an OpenAI-compatible gateway.
Price comparison table
| Model ID | Typical official / context | KeyoAPI | Notes |
|---|---|---|---|
claude-sonnet-5 |
Anthropic Claude Sonnet 4 list commonly cited near ~$3 / $15 per 1M in/out (confirm current Sonnet band) | ~$0.88 / $4.41 per 1M in/out | Everyday Claude production lane |
claude-opus-5 |
Anthropic Claude Opus 4 list commonly cited near ~$15 / $75 per 1M in/out (confirm current Opus band) | ~$2.21 / $11.03 per 1M in/out | Hard agent / coding escalations |
claude-fable-5 |
Anthropic flagship Claude list bands are typically far higher than Sonnet — verify on Anthropic pricing | ~$8.82 / $44.12 per 1M in/out | Flagship chat / agent twin |
claude-fable-5-1 |
Newer flagship Claude list — verify on Anthropic console | ~$7.35 / $36.77 per 1M in/out | Planner-tier Fable 5.1 |
Prototype free, then promote to Claude
Keyo does not ship Anthropic-branded free Claude IDs. For $0 prototyping on the same API key, use permanent free twins such as deepseek-v4-flash-free, deepseek-v4-pro-free, glm-5.2-free, and kimi-k3-free (fair-use limits). When quality gates pass, switch model= to claude-sonnet-5 or another Claude ID without changing base URL or auth.
Rates and how to call
Teams comparing Claude API pricing usually already want Anthropic-class chat or agents with clearer unit economics — or one prepaid balance across Claude-class IDs plus GPT-class, DeepSeek, Whisper, OCR, and TTS. Official Anthropic surfaces win on brand trust; KeyoAPI wins when you want that stack without five invoices.
Keyo rates above are indicative sell prices from the live Keyo catalog. Always confirm interactive pages under /pricing/claude-sonnet-5, /pricing/claude-opus-5, /pricing/claude-fable-5, and /pricing/claude-fable-5-1 before contracting volume. Anthropic list bands and context tiers change — treat official figures as planning context.
How to call: set OPENAI_BASE_URL=https://www.keyoapi.xyz/v1, use your Keyo API key, and pass a Claude model string (for example claude-sonnet-5) to POST /v1/chat/completions. Longer guides live at /model/claude-sonnet-5, /model/claude-opus-5, and the Fable pages.
When Claude list prices spike your margin, keep Claude for hard reasoning and shift bulk classification or drafts to gpt-5.6-luna or deepseek-v4-flash on the same key. For OpenAI / GPT dollars see /openai-api-pricing; for Gemini dollars see /gemini-api-pricing; for DeepSeek see /deepseek-api-pricing; for free prototyping see /free-models.
curl https://www.keyoapi.xyz/v1/chat/completions \
-H "Authorization: Bearer $KEYO_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"claude-sonnet-5","messages":[{"role":"user","content":"Hello"}]}'
FAQ
Is Keyo cheaper than Anthropic Claude API pricing?
Often on the Sonnet/Opus rows we list — but Anthropic’s public list, prompt caching, and batch discounts change. Treat this table as a planning snapshot and verify both sides before you commit.
Do you offer a free Claude model?
Not as an Anthropic-branded free ID. Use Keyo’s permanent $0 DeepSeek/GLM/Kimi free twins to prototype on the same key, then promote to paid Claude IDs when you need that quality band.
How do I try Claude on Keyo?
Create a key at /sign-up, then open /pricing/claude-sonnet-5 (or another Claude ID) for interactive try/buy. There is no separate upload playground — Model Square is the try path.