Context
200K
Max output
64K
Serving providers
3
Cheapest input
$3.00 /1M
Prices are on-demand list rates. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.
Benchmarks
independent evaluations · source: ARC PrizeIndividual benchmarks · click a row for effort variants
| Benchmark | Best score | Effort | Cost / task | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ARC-AGI-2 | 14% | reasoning: true · thinking_budget: 32000 | $0.759 | |||||||||||||||||||||||||
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Pricing by serving provider
standard tier · per 1M tokens · click a provider to expand| Serving provider | Input /1M | Output /1M | Endpoints | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Amazon BedrockCheapest | $3.00 | $15.00 | 1 | ||||||||||||||||||||||||||
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| AnthropicCheapest | $3.00 | $15.00 | 1 | ||||||||||||||||||||||||||
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| Vertex AICheapest | $3.00 | $15.00 | 1 | ||||||||||||||||||||||||||
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Price history
input + output $/1M since we started tracking Input Output
Cost calculator
estimate your monthly spend on this model$1,800
estimated / month
Model IDs
copy the exact identifier for your platformanthropic.claude-sonnet-4-5-20250929-v1:0claude-sonnet-4-5-20250929vertex_ai/claude-sonnet-4-5@20250929
Frequently asked questions
Claude Sonnet 4.5 (2025-09-29) pricing, context and availabilityHow much does Claude Sonnet 4.5 (2025-09-29) cost?
Claude Sonnet 4.5 (2025-09-29) costs $3.00 per 1M input tokens and $15.00 per 1M output tokens at its cheapest provider via Amazon Bedrock.
What is the context window of Claude Sonnet 4.5 (2025-09-29)?
Claude Sonnet 4.5 (2025-09-29) accepts up to 200K tokens of context and can return up to 64K output tokens.
Which providers serve Claude Sonnet 4.5 (2025-09-29)?
Claude Sonnet 4.5 (2025-09-29) is available from 3 serving providers, each with its own pricing and model ID. Amazon Bedrock is currently the cheapest.
What can Claude Sonnet 4.5 (2025-09-29) do?
Claude Sonnet 4.5 (2025-09-29) supports image input (vision), tool use, reasoning, prompt caching, structured output and web search.
Other Anthropic models
compare pricing across the Anthropic lineupClaude Sonnet 4.5$3.00/1M · 8 providersClaude Haiku 4.5$1.00/1M · 7 providersClaude Opus 4.5$5.00/1M · 7 providersClaude Sonnet 4.6$3.00/1M · 6 providersClaude Opus 4.6$5.00/1M · 6 providersClaude Opus 4.1$15.00/1M · 6 providersClaude Sonnet 4$3.00/1M · 5 providersClaude 3.7 Sonnet$3.00/1M · 5 providers
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