Anthropic: Claude Sonnet 4.5
anthropic/claude-sonnet-4-5Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows.
Modalities
In / out per 1M$3.00 / $15
Context1M
ReleasedSep 29, 2025
Providers
7 providers serve this model upstream.
| Provider | Input /M | Output /M | Cache read /M | Latency P50 | Throughput P50 | Uptime |
|---|---|---|---|---|---|---|
 Claude Platform on AWS | $3.00 | $15 | $0.30 | 1.40s | 37 tps | 100% |
 Azureglobal | $3.00 | $15 | $0.30 | 2.56s | 25 tps | 100% |
 Amazon Bedrock | $3.00 | $15 | $0.30 | 1.71s | 35 tps | 100% |
| Amazon Bedrockeu-west-1 | $3.30 | $17 | $0.33 | 1.66s | 50 tps | 100% |
 Google Vertexus-east5 | $3.30 | $17 | $0.33 | 0.99s | 56 tps | 100% |
| Anthropic | $3.00 | $15 | $0.30 | 1.15s | 43 tps | 99.97% |
| Google Vertexglobal | $3.00 | $15 | $0.30 | 4.68s | 37 tps | 99.59% |
Market-wide measurements, refreshed every 15 minutes. They describe who serves Claude Sonnet 4.5 in general, not how ProjectCOZY routes your requests.
Pricing
List rates per 1M tokens — what Claude Sonnet 4.5 costs pay-as-you-go elsewhere, not what you pay here.
Input
$3.00
per 1M tokens
Output
$15
per 1M tokens
Cache read
$0.30
per 1M cached tokens
Included in every pass
Claude Sonnet 4.5 is included in every ProjectCOZY pass at no extra cost — one flat rate, no per-token metering. The rates above are there for comparison.
Performance
Time to first token and output speed across every provider, over the last 3 days.
0.0s2.5s5.0s7.5s10.0s
Oct 11, 12 AMOct 11, 8 AMOct 11, 4 PMOct 12, 12 AMOct 12, 8 AMOct 12, 4 PMOct 13, 12 AMOct 13, 8 AMOct 13, 4 PMOct 14, 12 AMOct 14, 8 AM
Google Vertex (global) Anthropic Amazon Bedrock Claude Platform on AWS Azure (global) Amazon Bedrock (eu-west-1)
0 tok/s100 tok/s200 tok/s300 tok/s400 tok/s
Oct 11, 12 AMOct 11, 8 AMOct 11, 4 PMOct 12, 12 AMOct 12, 8 AMOct 12, 4 PMOct 13, 12 AMOct 13, 8 AMOct 13, 4 PMOct 14, 12 AMOct 14, 8 AM
Google Vertex (global) Anthropic Amazon Bedrock Claude Platform on AWS Azure (global) Amazon Bedrock (eu-west-1)
Uptime
100% of requests were served successfully over the last 3 days, across all providers.
Last 3 daysAvailability 99.86%
Oct 11, 2:00 PMNow
Availability over the last 24 hoursAvailability 99.86%
100% 98% 97% 95%
Oct 13, 2:50 PMNow
Apps
Tools that most often run Claude Sonnet 4.5, by tokens this week.
Activity
497.6B tokens processed market-wide in the last month.
010.0B20.0B30.0B40.0B
Sep 14Sep 19Sep 24Sep 29Oct 4Oct 9Oct 14
Tokens
FAQ
Which model id do I use for Claude Sonnet 4.5?
anthropic/claude-sonnet-4.5. Send it as the model field from any OpenAI-compatible client, against http://192.168.1.55/v1.
How much context does Claude Sonnet 4.5 hold?
1,000,000 tokens per request, of which up to 64,000 can be the response.
What can it accept and return?
Input: text, image, file. Output: text.
What does Claude Sonnet 4.5 cost on a pass?
Nothing beyond the pass itself. Pay-as-you-go elsewhere it lists at $3.00 per 1M input tokens and $15 per 1M output tokens.
How current is its knowledge?
Training data runs to Jan 2025. Anything later has to come from your prompt or a tool call.
Who built Claude Sonnet 4.5?
Anthropic, in the Claude family.
Explore
Other models your pass can call.
