Claude API pricing 2026 — model rates, payment, and actual costs

Claude is the standard for reasoning, coding, and agent workloads — and Kunavo offers all Claude models at 30% below Anthropic's official rates, depending on the model, through a single OpenAI-compatible API. Since September 24, 2026, this has also included claude-sonnet-5: Anthropic made the $2.00 / $10.00 rates its permanent standard pricing on August 31, 2026, and Kunavo offers it at a 30% discount. This guide brings together the topic Turkish developers search for most, Claude API pricing and payments, in one place: current rates by model, payments from Türkiye, cost examples you can verify yourself, and the methods that reduce your bill the most.

Claude API pricing at a glance

Rates are in USD per 1M tokens, as charged by Kunavo. The “Anthropic rate” column shows the official price for the same model, so you can compare at a glance.

Current rates are always listed on the pricing page and model pages (claude-sonnet-4-6, claude-haiku-4-5, claude-opus-4-7). Haiku is for low-cost workloads, Sonnet is a balanced default, and Opus and Fable are for the heaviest reasoning. Claude Opus 5.5, released by Anthropic on September 22, 2026, is the latest Opus model, with a 1M-token context window and up to 128K output tokens.

Claude Opus 5.5 is the best price/performance choice. Anthropic lists it at $4.00 / $20.00 per 1M tokens — below Opus 5 at $5.00 / $25.00 — and says it performs at the level of Claude Fable 5.1 on most tasks. On Kunavo, it costs $2.80 / $14.00, about 30% below Anthropic’s rate. It is also cheaper than Opus 5 ($3.50 / $17.50) and has the lowest Opus rate on Kunavo. Sonnet 5 is cheaper still, at $1.40 / $7.00, about 30% below Anthropic’s rate. An analysis with 50K input / 2K output tokens costs $0.42 on Fable 5, $0.21 on Opus 5, and $0.168 on Opus 5.5. Adaptive thinking is always on in Opus 5.5, so reserve part of the output budget for it.

How can I pay for the Claude API from Türkiye?

Payments are processed through Stripe. There is no subscription or billing setup in Anthropic Console: add balance, then each call is deducted at the token rates above. Payment methods available from Türkiye:

• Credit/debit cards: Visa, Mastercard, American Express
• Apple Pay, Google Pay, Link (one-click payment)

Prices are in USD. If the payment page displays the local currency, Stripe handles the conversion (the rate includes a 2–4% conversion fee); if you pay in USD, your bank handles the conversion at its own rate (check the international transaction fee). Minimum top-up $10, prepaid, and the balance never expires. If a card is declined, the reason is often that international use is disabled—simply enable international transactions in your bank’s app.

Cost examples

Actual figures calculated using Kunavo rates:

Processing 10,000 support requests per day with Haiku costs approximately $12.60/day. Calculate it yourself:

# Kunavo'da Claude tarifeleri (1M token başına USD): (girdi, çıktı)
RATES = {
    "claude-haiku-4-5":  (0.70, 3.50),
    "claude-sonnet-4-6": (2.10, 10.50),
    "claude-opus-4-7":   (3.50, 17.50),
    "claude-opus-5":     (3.50, 17.50),
    "claude-opus-5-5":   (2.80, 14.00),
}

def maliyet(model: str, in_tokens: int, out_tokens: int) -> float:
    i, o = RATES[model]
    return in_tokens / 1_000_000 * i + out_tokens / 1_000_000 * o

print(maliyet("claude-haiku-4-5", 800, 200))      # bir destek talebi    -> $0.00126
print(maliyet("claude-sonnet-4-6", 6_000, 500))   # bir RAG yanıtı       -> $0.0179
print(maliyet("claude-opus-4-7", 50_000, 2_000))  # uzun bağlam analizi  -> $0.21
print(maliyet("claude-opus-5", 50_000, 2_000))    # Opus 5 analizi       -> $0.21
print(maliyet("claude-opus-5-5", 50_000, 2_000))  # Opus 5.5 analizi     -> $0.168

Turkish consumes ~15–25% more tokens than English for the same content — account for this when budgeting.

Prompt caching — the single biggest saving

If your system prompt or retrieved context is large and stable, prompt caching bills cached input at %10 of the input rate (for Claude Fable 5.1, %2.5 and for Claude Opus 5.5, %5). Input costs drop by 60–90% for long, repeated prompts — just one extra field in the request is enough. See the in-depth prompt caching guide and the Messages API reference.

Claude, GPT, image, and video with one key

A single Kunavo key (sk-kn-…) calls GPT and image, video, and audio models as well as Claude — all in an OpenAI-compatible format and billed to a single Stripe balance, with no need to reconcile invoices per provider. Claude is available through both the OpenAI-compatible /v1/chat/completions and native Anthropic Messages API (/v1/messages); use your existing SDK without changing it. Find the steps to create a key in the authentication documentation.

Which Claude model should you choose?

Cost-saving patterns that route by difficulty are in the AI cost optimization guide. For an OpenRouter comparison, see Kunavo vs OpenRouter.

Claude in VS Code — Kilo Code, Cline, Roo Code

If you use a coding agent such as Kilo Code, Cline, or Roo Code, point the “OpenAI Compatible” provider to https://api.kunavo.com/v1 with your Kunavo key and select a Claude model — three fields, that’s all. A typical agent session consumes thousands of tokens per step; savings of %30 quickly add up, depending on the model. Setup with screenshots: Kilo Code + Claude API guide.

Reducing Claude API costs

1. Start with prompt caching. Cached input is billed at %10 of the rate (for Claude Fable 5.1, %2.5 and for Claude Opus 5.5, %5) — the highest-impact step.
2. Use a lower tier. Send easy tasks to Haiku; save Opus/Fable for the hard parts.
3. Limit output. Set max_tokens — output costs ~5x as much as input.
4. Reduce input. Retrieve fewer, more relevant RAG chunks instead of the entire knowledge base.

Frequently asked questions