Claude Sonnet 4.5 (latest)
anthropic/claude-sonnet-4-5제공: Anthropic · 패밀리: claude-sonnet · 출시 2025-09-29 · 지식 컷오프: 2025-07-31
Prices in USD per 1M tokens. Unknown means the provider does not publish per-token pricing.
기능
Model fit scores
0–100 · higher is betterThese scores reward declared capabilities, context size, price and provider availability — they are not benchmark results. Use them as a directional signal alongside your own evaluation.
Coding66
- Tool calling40/40
- Structured output0/20
- Reasoning10/10
- Context window (100K → 1M)6/20
- Provider availability10/10
Agents75
- Tool calling35/35
- Structured output0/25
- Reasoning15/15
- Output token limit15/15
- Provider availability10/10
JSON / structured output30
- Structured output / JSON mode0/50
- Tool calling20/20
- Temperature control10/10
- Price-friendly for high-volume0/20
Cost efficiency36
- Headline price (log-scaled)31/95
- Has prompt-cache pricing5/5
Long context55
- Context window (100K → 2M)45/90
- Has published price for full window10/10
Vision90
- Accepts image input50/50
- Context window (10K → 1M)20/30
- Has published price10/10
- Provider availability10/10
Production-readiness94
- Number of independent providers40/40
- Has published per-token price20/20
- Context window ≥ 8K15/15
- No data inconsistencies across providers4/10
- Official model (not derivative)15/15
Cost Efficiency Index
Open full calculator →Estimated cost using the recommended provider's headline rate. Each scenario fixes average input/output tokens — the assumptions are shown in the third column.
| Scenario | Cost | Assumption |
|---|---|---|
RAG answer per 1,000 RAG answers | $22.50 $0.02 per request | 5K input tokens (query + 4 retrieved chunks of ~1K each) and a 500-token answer. Typical SaaS knowledge-base bot. |
Support ticket triage per 10,000 tickets | $45.00 < $0.01 per request | 1K input tokens (ticket body + system prompt) and a 100-token JSON classification reply. High-volume customer support. |
Data extraction per 1,000 documents | $13.50 $0.01 per request | 2K input tokens (a single document page) and a 500-token JSON extraction. ETL / invoice / form pipelines. |
Code review per 1,000 PRs | $39.00 $0.04 per request | 8K input tokens (diff + surrounding files) and a 1K-token review comment. PR-bot workloads. |
Agent step per 1,000 steps | $45.00 $0.04 per request | 12K input tokens (long-running tool history) and a 600-token tool-call decision. Cost per agent step. |
가격 상세
추천 가격 제공자: anthropic · claude-sonnet-4-5
가장 저렴한 제공자: github-copilot · Unknown 입력 + Unknown 출력
16곳 제공사에서 이용 가능
| 제공자 | 제공자 모델 ID | 입력 / 1M | 출력 / 1M | 컨텍스트 | 출시일 |
|---|---|---|---|---|---|
| Anthropic anthropic | claude-sonnet-4-5 | $3.00 | $15.00 | 200K | 2025-09-29 |
| GitHub Copilot github-copilot | claude-sonnet-4.5 | Unknown | Unknown | 144K | 2025-09-29 |
| Azure azure | claude-sonnet-4-5 | $3.00 | $15.00 | 200K | 2025-11-18 |
| OpenRouter openrouter | anthropic/claude-sonnet-4.5 | $3.00 | $15.00 | 1M | 2025-09-29 |
| Vercel AI Gateway vercel | anthropic/claude-sonnet-4.5 | $3.00 | $15.00 | 200K | 2025-09-29 |
| 302.AI 302ai | claude-sonnet-4-5 | $3.00 | $15.00 | 200K | 2025-09-30 |
| Perplexity Agent perplexity-agent | anthropic/claude-sonnet-4-5 | $3.00 | $15.00 | 200K | 2025-09-29 |
| ZenMux zenmux | anthropic/claude-sonnet-4.5 | $3.00 | $15.00 | 1M | 2025-09-29 |
| Kilo Gateway kilo | anthropic/claude-sonnet-4.5 | $3.00 | $15.00 | 1M | 2025-09-29 |
| Cloudflare AI Gateway cloudflare-ai-gateway | anthropic/claude-sonnet-4-5 | $3.00 | $15.00 | 200K | 2025-09-29 |
| OpenCode Zen opencode | claude-sonnet-4-5 | $3.00 | $15.00 | 1M | 2025-09-29 |
| Poe poe | anthropic/claude-sonnet-4.5 | $2.60 | $13.00 | 983K | 2025-09-26 |
| Venice AI venice | claude-sonnet-4-5 | $3.75 | $18.75 | 198K | 2025-01-15 |
| Azure Cognitive Services azure-cognitive-services | claude-sonnet-4-5 | $3.00 | $15.00 | 200K | 2025-11-18 |
| Requesty requesty | anthropic/claude-sonnet-4-5 | $3.00 | $15.00 | 1M | 2025-09-29 |
| LLM Gateway llmgateway | claude-sonnet-4-5 | $3.00 | $15.00 | 200K | 2025-09-29 |
제공자 간 데이터 불일치
- context_window varies: 1000000, 144000, 198000, 200000, 983040
- release_date varies (span 307d): 2025-01-15, 2025-09-26, 2025-09-29, 2025-09-30, 2025-11-18
- modalities varies across offerings
제공자별로 이 모델의 값이 다릅니다. 위의 핵심 정보는 대표 제공자 기준이며, 제공자별 상세는 표를 참고하세요.
Frequently asked questions
How much does Claude Sonnet 4.5 (latest) cost?
Claude Sonnet 4.5 (latest) costs $3.00 per 1M input tokens and $15.00 per 1M output tokens, sourced from anthropic. Cache reads, audio tokens and >200K-context tiers (where applicable) are listed in the Pricing detail block above.
What is the context window of Claude Sonnet 4.5 (latest)?
Claude Sonnet 4.5 (latest) has a context window of 200K tokens, with a max output of 64K tokens per reply. This is the total combined size of prompt + completion.
Does Claude Sonnet 4.5 (latest) support tool calling?
Yes. Claude Sonnet 4.5 (latest) supports tool calling (function calling). This makes it suitable for production agent and automation workloads where the model has to invoke external functions reliably.
Does Claude Sonnet 4.5 (latest) support structured output / JSON mode?
Support for structured output / JSON-schema-constrained decoding is not reported for Claude Sonnet 4.5 (latest) in our data source. Verify with Anthropic's official documentation before relying on it in production.
Can Claude Sonnet 4.5 (latest) accept image input?
Yes. Claude Sonnet 4.5 (latest) accepts both text and image input. Vision pricing per image is usually billed on top of the regular token rate — check Anthropic's docs for the exact rule.
Is Claude Sonnet 4.5 (latest) open-weight?
No. Claude Sonnet 4.5 (latest) is a proprietary model — only Anthropic (and any approved hosting partners) can serve it. The pricing above reflects the cheapest API access.
What are the best alternatives to Claude Sonnet 4.5 (latest)?
If Claude Sonnet 4.5 (latest) doesn't fit, consider Claude Opus 4.6, Claude Sonnet 4.6, Claude Haiku 4.5 (latest). Each one targets the same use case — see the Related links below for direct head-to-head pages.
Where does this data come from?
All numbers come from the public models.dev API and are normalised into a single canonical model record. We re-pull daily and write any changes (price, context, capability) to the /changelog page.
Explore more
Direct comparisons
More Anthropic models
- Claude Opus 4.6$5.00 in / $25.00 out
- Claude Sonnet 4.6$3.00 in / $15.00 out
- Claude Haiku 4.5 (latest)$1.00 in / $5.00 out
- Claude Opus 4.7$5.00 in / $25.00 out
- Claude Opus 4.5 (latest)$5.00 in / $25.00 out
Capability lists this model is in
마지막 업데이트:
Data is sourced from models.dev and normalized for comparison. Prices and capabilities may change. Always verify critical production decisions with the provider's official documentation.