Claude Sonnet 5.5 API pricing
Anthropic · Mid-tier · Proprietary · released 2026-09. Prices in USD per 1 million tokens. Data snapshot: 2026-10-14.
Claude Sonnet 5.5 has held the same list price since 2026-09-29 and is the 87th cheapest of 107 Mid-tier models. None of its 5 hosts undercuts the price we quote. It is rated a stable release but does not meet all four criteria of the FinOps Friendly badge.
- Input: $2.00 per 1M tokens
- Output: $10.00 per 1M tokens
- Batch API (in/out): $1.00 / $5.00 per 1M tokens
- Prompt-cache read: $0.10 per 1M tokens
- Context window: 1M tokens
- Arena ELO: 1476 as of 2026-10-08
Available on
AWS Bedrock regions: ap-northeast-1, ap-southeast-1, eu-central-1, eu-north-1, eu-south-1, eu-south-2, eu-west-1, eu-west-3, us-east-1, us-east-2, us-west-2
Market position
On blended price ($7.60 per 1M tokens at 30% input, 70% output) it is cheaper than 13% of Mid-tier models: 87th cheapest of 107, tied with 6 others. Across every category it is cheaper than 16% of priced text models in the catalogue: 231st cheapest of 282, tied with 6 others. Its Arena ELO of 1476 ranks 15th of the 72 models that carry one, above 80% of them.
Licence, size and capabilities
Claude Sonnet 5.5 is recorded here as proprietary: access is through an API, priced by the token. Its parameter count is not published. Listed capabilities: Text, Vision, Reasoning, Agents. Filling its 1M context window once costs $2.00 in input tokens at list price.
Pricing by host
A host is a company that runs the model and sells it by the token: the model maker, a cloud platform like Amazon Bedrock, Azure or Vertex, or an independent host. One model, several hosts, and often several prices. This model is sold by 5 different hosts. The price we quote elsewhere on this page is marked. We quote one host's rate so that models stay comparable; it is not a recommendation to buy there.
The price we quote is already the cheapest of the 5 hosts: Anthropic at $2.00 input / $10.00 output per 1M tokens. All of them charge within 10% of one another.
| Host | Input $/1M | Output $/1M |
|---|---|---|
| Anthropic (model maker, price we quote) | $2.00 | $10.00 |
| Google (price we quote) | $2.00 | $10.00 |
| Amazon Bedrock (price we quote) | $2.00 | $10.00 |
| Azure (price we quote) | $2.00 | $10.00 |
| Claude Platform on AWS (price we quote) | $2.00 | $10.00 |
List prices as published on 2026-10-14, via OpenRouter. Negotiated rates, committed-use discounts and provisioned capacity are not shown.
Monthly cost at 100K requests, by business use case
From the after-discounts figure (prompt caching on the cached input share, batch API for async workloads, only where Anthropic publishes those rates), which assumes you implement both, to the list price. One figure means no discount is published.
| Use case | Tokens (in/out) | Monthly (after discounts – list) |
|---|---|---|
| Support Ticket | 1,500 / 500 | $638 – $800 |
| Knowledge Q&A | 2,000 / 800 | $948 – $1.2K |
| Meeting Summary | 10,000 / 1,200 | $1.5K – $3.2K |
| Marketing Content | 2,500 / 1,800 | $2.2K – $2.3K |
| Coding Task | 3,000 / 2,000 | $2.3K – $2.6K |
| Invoice Processing | 1,500 / 600 | $423 – $900 |
| Call Summary | 2,000 / 700 | $538 – $1.1K |
| Agent Workflow | 6,000 / 3,000 | $3.4K – $4.2K |
Price history
Claude Sonnet 5.5 entered our daily price archive on 2026-09-29; tracking began on 2026-08-15. It listed at $2.00 input / $10.00 output per 1M tokens that day. No list price change since 2026-09-29. Last checked against the 2026-10-14 snapshot.
Alternatives to Claude Sonnet 5.5
- Next cheaper Mid-tier model: MiMo-V2.6-Pro-UltraSpeed (Xiaomi) at $7.395 blended, 3% less.
- Next more expensive: Command A (Cohere) at $7.75 blended, 2% more.
The nearest Mid-tier models on Arena ELO, each with its blended price and score difference against Claude Sonnet 5.5.
- GLM 5.2 (Zhipu): $0.05 in / $7.00 out per 1M, Arena ELO 1475 (35% cheaper, 1 ELO point lower)
- Qwen3.7 Max (Alibaba): $1.475 in / $4.425 out per 1M, Arena ELO 1475 (53% cheaper, 1 ELO point lower)
- Grok 4.20 (xAI): $1.25 in / $2.50 out per 1M, Arena ELO 1475 (72% cheaper, 1 ELO point lower)
- GLM 5.3 (Zhipu): $0.07 in / $4.80 out per 1M, Arena ELO 1478 (56% cheaper, 2 ELO points higher)
- Cheapest within 15 Arena points: GLM 5.3 Flash (Zhipu), 92% cheaper, 1 ELO point lower, out of 24 models in that band.
- Highest Arena ELO within 20% of this price: Kimi K3 (Moonshot), 5% cheaper, 12 ELO points higher, out of 11 models in that price band.
Other models from Anthropic
The 8 nearest to Claude Sonnet 5.5 in price, of 14 other Anthropic models in the catalogue. Prices per 1M tokens, input then output.
- Claude Haiku 5.5: $0.10 / $0.50
- Claude Haiku 4.5: $1.00 / $5.00
- Claude Sonnet 5: $2.00 / $10.00
- Claude Sonnet 4: $3.00 / $15.00
- Claude Sonnet 4.5: $3.00 / $15.00
- Claude Sonnet 4.6: $3.00 / $15.00
- Claude Opus 5.5: $4.00 / $20.00
- Claude Opus 4.5: $5.00 / $25.00
All 15 Anthropic models and prices
Common questions about Claude Sonnet 5.5 pricing
- How much does Claude Sonnet 5.5 cost?
- Claude Sonnet 5.5 costs $2.00 per 1M input tokens and $10.00 per 1M output tokens. That is the model maker's own rate (Anthropic). Prices as listed on 2026-10-14.
- Which host is cheapest for Claude Sonnet 5.5?
- The price we quote is already the cheapest of the 5 hosts: Anthropic at $2.00 input / $10.00 output per 1M tokens. All of them charge within 10% of one another. Host rates as listed on 2026-10-14.
- Does Claude Sonnet 5.5 offer batch or cached pricing?
- Yes, both. Batch API pricing is $1.00 per 1M input tokens and $5.00 per 1M output tokens, and prompt-cache reads cost $0.10 per 1M tokens, as listed on 2026-10-14.
- What would Claude Sonnet 5.5 cost per month?
- With the Support Ticket profile (1,500 input and 500 output tokens per request), 100,000 requests a month cost about $800 on Claude Sonnet 5.5 at the list price quoted on 2026-10-14.
- Can Claude Sonnet 5.5 be self-hosted?
- No, as far as this site records. Claude Sonnet 5.5 is recorded here as proprietary: access is through an API, priced by the token.
- Has the price of Claude Sonnet 5.5 changed?
- Claude Sonnet 5.5 entered our daily price archive on 2026-09-29; tracking began on 2026-08-15. It listed at $2.00 input / $10.00 output per 1M tokens that day. No list price change since 2026-09-29. Last checked against the 2026-10-14 snapshot.
These are list prices. Your real cost also depends on caching and batching, negotiated discounts, marketplace agreements, and the contracts you already have. OptimNow audits exactly that.
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