Claude Fable 5.2 API in Russia — no VPN, no foreign card
Claude Fable 5.2 (November 2026) is Anthropic's model for hard reasoning and long-horizon agentic work, 20% cheaper than Fable 5.1. Connect through RuAPI: pay in USDT from $5, no subscription, your key right after sign-up.
from openai import OpenAI
client = OpenAI(
api_key="sk-...",
base_url="https://www.ruapi.ai/v1",
)
resp = client.chat.completions.create(
model="claude-fable-5-2",
messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)Replace sk-... with a key from the RuAPI Console — the model claude-fable-5-2 is already set.
Claude Fable 5.2 API price
Current price in US dollars — the same as on the pricing page. Pay in USDT, pay as you go, no subscription.
| model | input $ / 1M | output $ / 1M |
|---|---|---|
| claude-fable-5-2 | $9.60 cache read $0.24 | $48.00 |
Input is the regular price of input tokens, “cache read” is the price of input tokens served from the prompt cache, output is the price of output tokens. The price in your account may be lower.
What is Claude Fable 5.2
Claude Fable 5.2 was released on November 9, 2026 and replaces Fable 5.1. Anthropic built it for demanding reasoning and long-horizon agentic work: agent sessions that run for hours, multistep deep research, and analysis carried through to a finished document, spreadsheet or deck. Its official price for input, output and cache reads is 20% lower than 5.1's, and it is lower on RuAPI too; the current price is in the table on this page.
Adaptive thinking is always on; you control its depth with the effort parameter (default high). It has a 1M-token context, up to 128K output tokens, and accepts text and images. Forced tool use (tool_choice any or tool) returns an error; omit temperature, top_p and top_k, since non-default values return an error too. Through RuAPI you can call it in native Anthropic format or via the OpenAI-compatible /v1/chat/completions, with prompt caching in both.
Claude Fable 5.2 specs
| Developer | Anthropic |
| Model ID in the RuAPI API | claude-fable-5-2 |
| Context window | 1M tokens |
| Max output | 128K tokens |
| Input | text, images |
| Output | text |
| Reasoning mode | yes |
| Tool calling | yes |
| Prompt caching | yes |
| Status | generally available |
| Protocols on RuAPI | OpenAI (/v1/chat/completions) · Anthropic (/v1/messages) |
Specs are from Anthropic’s official documentation (platform.claude.com), checked Nov 10, 2026.
What it’s good for
- Agent sessions that run for hours with many steps and tool calls
- Multistep research that ends in a written report
- Tasks Opus 5.5 can't handle
- Moving off Fable 5.1: a newer version at a lower price
When another model is a better fit
- Claude Opus 5.5 — Half the price for input and output. Anthropic suggests starting with Opus and moving to Fable only when Opus falls short.
- Claude Fable 5.1 — The previous version, still available if you want to compare answers on your own prompts.
How to connect Claude Fable 5.2 from Russia
- Sign up at ruapi.ai — with email, Google or Yandex. No VPN needed.
- Top up with USDT or USDC from 5 USDT. No USDT yet? Buy it with rubles via SBP — step by step in the docs.
- In the Console, open API Keys → Create key.
- Use the address https://www.ruapi.ai/v1 and the model claude-fable-5-2. For the Anthropic SDK and Claude Code, the address is https://www.ruapi.ai, without /v1.
FAQ
See also: Claude API in Russia · Documentation · Claude Fable 5.1 · Claude Opus 5.5 · Claude Sonnet 5.5 · Claude Haiku 5.5