TackleKey
Model pricing reference
anthropic/claude-sonnet-4.5-think pricing on TackleKey
Use this public model page to check provider context, API setup direction, and production pricing signals before larger tests.
Public pricing signal
Input
$3.47 / 1M tokens
Output
$17.33 / 1M tokens
Endpoint
openai
Price context within Anthropic
By the sum of the current public input and output reference prices, anthropic/claude-sonnet-4.5-think ranks 8 of 26 priced Anthropic models listed on TackleKey. This is a price reference, not a quality or reliability ranking.
Cost examples
These arithmetic examples use the public per-million-token references shown above. They exclude retries, cached-token rules, tools, images, audio, provider-specific features, and future price changes.
| Scenario | Input tokens | Output tokens | Input cost | Output cost | Estimated total |
|---|---|---|---|---|---|
| Small validation | 1,000 | 500 | $0.00347 | $0.008665 | $0.012135 |
| Application batch | 100,000 | 20,000 | $0.347 | $0.3466 | $0.6936 |
| Large reference | 1,000,000 | 200,000 | $3.47 | $3.466 | $6.936 |
OpenAI-compatible request
Use the exact public model identifier anthropic/claude-sonnet-4.5-think. Keep the project key in a server-side environment variable and start with a small response limit.
curl https://api.tacklekey.com/v1/chat/completions \
-H "Authorization: Bearer $TACKLEKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-sonnet-4.5-think",
"messages": [
{
"role": "user",
"content": "Reply with a one-sentence API health check."
}
],
"max_tokens": 64
}'How to use it
TackleKey is OpenAI-compatible for common chat completion workflows. Replace the base URL with the TackleKey endpoint, use a project API key, and verify the anthropic/claude-sonnet-4.5-think availability, endpoint support, request log, and balance record before scaling traffic.
This page is generated from public production pricing data. Actual route selection may consider cooldown, endpoint support, account-level health, and request shape.
Related Anthropic models
anthropic/claude-opus-5
anthropic/claude-fable-5
anthropic/claude-opus-4.8
anthropic/claude-opus-4.7
anthropic/claude-sonnet-4.6
anthropic/claude-opus-4.6
FAQ
What model ID should I send for anthropic/claude-sonnet-4.5-think?
Use anthropic/claude-sonnet-4.5-think exactly as shown in the current TackleKey pricing catalog, then confirm it is still available before a larger run.
How is the anthropic/claude-sonnet-4.5-think example cost calculated?
Each example multiplies the displayed public price per one million tokens by the sample input or output token count. It is an estimate, not a billing promise.
Is anthropic/claude-sonnet-4.5-think the cheapest or best model?
This page does not make that claim. Compare live Anthropic and cross-provider prices, endpoint support, request success, and output quality for your workload.
Try TackleKey with one OpenAI-compatible change
Create an account, generate a project API key, then replace your client base URL with the TackleKey endpoint. Keep keys server-side and verify live pricing before scaling traffic.