Claude Sonnet 4.5
Claude Sonnet 4.5 by Anthropic. Official list price: $3 per 1M input and $15 per 1M output tokens.
Official price benchmark
USD per 1M tokens
- input
- $3.00
- output
- $15.00
- cache read
- $0.300
Your budget
Input:output ratio · Similar amounts of input and output
Purchasing power ranking
$100 · Claude Sonnet 4.5 · Balanced
Best price
Clidex
−91%
providers
6
max −91%
Purchasing power ranking
The provider's published prices next to the vendor's official list.
| # | Provider | Input | Output | Cache | Uptime | Latency | Score | Tokens for budget | Save |
|---|---|---|---|---|---|---|---|---|---|
| — | Official price | $3.00 | $15.00 | $0.300 | — | — | — | 11.1M | 0% |
| 1 | Clidexoperational · Nov 11, 2026 | $0.270 | $1.35 | $0.027 | 100.0% | 1.31 s | 88 | 123M | −91% |
| 2 | RunAPIdegraded · Nov 11, 2026 | $0.270 | $1.35 | $0.027 | 90.0% | 1.03 s | 84 | 123M | −91% |
| 3 | FoxRouteroperational · Nov 11, 2026 | $0.450 | $2.25 | — | 100.0% | 4.51 s | 70 | 74.1M | −85% |
| 4 | Crazyrouterdown · Nov 11, 2026 | $0.450 | $2.25 | $0.045 | 50.0% | 1.34 s | 52 | 74.1M | −85% |
| 5 | Polza.aioperational · Nov 11, 2026 | $4.41 | $22.03 | $0.441 | 100.0% | 504 ms | 98 | 7.56M | -47% |
| 6 | Passion8operational · Nov 11, 2026 | $11.25 | $56.25 | — | 100.0% | 2.04 s | 79 | 2.96M | -275% |
Some links on this site are partner links. They do not affect prices or ranking. Uptime and latency come from our own GET /models probes every 30 minutes, not a guarantee that the model is available.
Cost estimate
What one request and a month of traffic cost at the selected provider.
per request
$0
per month
$6.08
Clidex · −91% · 1.20K / 500
Other models
Frequently asked questions
Answers are generated from the live quotes.
We collect Claude Sonnet 4.5 prices two ways: the official Anthropic list and quotes from providers our crawler checks daily. Providers in our catalogue sell Claude Sonnet 4.5 at $0.270 in / $1.35 out (91% below the official list). Everything is normalised to a blended cost at a chosen input:output ratio, so “Claude Sonnet 4.5 price per 1M tokens” means the same thing on every page.
What does the Claude Sonnet 4.5 API cost?
The official Anthropic list price is $3.00 per 1M input tokens and $15 per 1M output tokens. Cached input is $0.300 per 1M tokens, 10× cheaper than the regular input.
How much does 1 million tokens of Claude Sonnet 4.5 cost?
1M input tokens cost $3.00, 1M output tokens — $15. With a 1:1 input/output load a million tokens works out to about $9.00. Chatbots with long context push the blended price down; code generation pushes it up.
Where is the Claude Sonnet 4.5 API cheapest?
Our measurements show Clidex as the cheapest: 91% below the official price. Quotes from 6 providers refresh daily — see the table above.
What is the Claude Sonnet 4.5 context window?
The context window is 200K tokens. Some vendors raise the price above a context threshold — check the plan notes.
How do I check that a provider key works?
The free checker sends a GET request to your endpoint's model list and reports status and latency. The key is not stored server-side.