Claude Opus 5.5
The first model in Anthropic's Claude 5.5 family and the successor to Opus 5, built for long-running agentic coding and knowledge work, with thinking always on.
- Context
- 1M tokens
- Max output
- 128K
- Cutoff
- Released
Hosted API price
List price via Anthropic · per 1M tokens
- Input
- $4.00 /1M
- Output
- $20.00 /1M
- Hosted by
-
2 providers
Hosted API pricing
How we price
Order
Providers are listed cheapest input rate first, then by output rate, a tie going to the creator's own listing. A provider that lists the model without a published rate sits at the end.
Prices
Base-tier, on-demand rates in USD per 1M tokens, converted at ECB reference rates where a provider publishes in another currency. Cached-input and batch rates show only where a provider publishes them. "Cheapest" marks the one provider with the lowest input and output pair; a tie wears no badge.
Cost
Input rate times the input tokens plus output rate times the output tokens, at the monthly volume set above the table. Cached-input, batch, long-context and reasoning-token billing are not modelled.
Transparency and funding
- Affiliates: Affiliate links are marked. We may earn a commission if you click them, but commissions never affect the order.
Every provider serving Claude Opus 5.5, cheapest input first. Set your monthly volume to see what each would bill.
| Provider | Input /1M | Output /1M | Cached input /1M | Cost at 10M in + 2M out | Link |
|---|---|---|---|---|---|
|
Anthropic
Creator
|
$4.00 | $20.00 | $0.20 | $80.00 | Visit website |
|
DigitalOcean
|
$4.00 | $20.00 | $0.20 | $80.00 | Visit website |
Heads up: Base-tier, on-demand rates per 1M tokens; cached, batch and long-context tiers excluded. A provider may serve a shorter context or a quantized build than the creator's release. Verify before provisioning. More on how we price.
Similarly priced models
The models nearest Claude Opus 5.5 by blended rate, each at its own cheapest provider.
| Model | Blended /1M | Input /1M | Output /1M | Context | Cutoff | vs Claude Opus 5.5 |
|---|---|---|---|---|---|---|
GPT-5.2
OpenAI
|
$3.7917 | $1.75 | $14.00 | 400K | Aug 2025 | −43% |
|
GPT-5.3-Codex
OpenAI
|
$3.7917 | $1.75 | $14.00 | 400K | Aug 2025 | −43% |
|
GPT-5.4
OpenAI
|
$4.5833 | $2.50 | $15.00 | 1M | Aug 2025 | −31% |
|
Claude Sonnet 4.5
Anthropic
|
$5.00 | $3.00 | $15.00 | 200K | Jan 2025 | −25% |
|
Claude Sonnet 4.6
Anthropic
|
$5.00 | $3.00 | $15.00 | 1M | Aug 2025 | −25% |
|
Claude Opus 5.5
This model
Anthropic
|
$6.6667 | $4.00 | $20.00 | 1M | Jun 2026 | |
|
Claude Opus 4.5
Anthropic
|
$8.3333 | $5.00 | $25.00 | 200K | May 2025 | +25% |
|
Claude Opus 4.6
Anthropic
|
$8.3333 | $5.00 | $25.00 | 1M | May 2025 | +25% |
|
Claude Opus 4.7
Anthropic
|
$8.3333 | $5.00 | $25.00 | 1M | Jan 2026 | +25% |
|
Claude Opus 4.8
Anthropic
|
$8.3333 | $5.00 | $25.00 | 1M | Jan 2026 | +25% |
|
Claude Opus 5
Anthropic
|
$8.3333 | $5.00 | $25.00 | 1M | May 2026 | +25% |
USD per 1M tokens at each model's cheapest listed provider. Blended is the cost of 10M input plus 2M output tokens, spread over the 12M.
Capabilities
What Claude Opus 5.5 accepts and can do, as published by Anthropic.
- Text Accepts and generates natural-language text.
- Image Accepts images as input alongside text.
- Reasoning Thinks before it answers, always on or as a switchable mode.
- Function calling Connect to external tools, APIs, and systems.
- Structured output Return responses in structured formats like JSON.
- Web search Search the web for up-to-date information.
- Code execution Write and execute code in a sandboxed environment.
- File upload Process uploaded documents, spreadsheets, and other files.
- MCP Connect to services via Model Context Protocol.
Common questions
What is Claude Opus 5.5 good for?
Long-running agentic coding and knowledge work, with thinking depth set by an effort control. Anthropic says it performs at the level of Claude Fable 5.1 on most work while sitting lower in Anthropic's price range.
When is Claude Opus 5.5 not a good fit?
Audio or video input, and closed weights, so no self-hosting. Code that disables thinking or forces a tool call needs changes, since both return an error on this model.
What is the cheapest way to run Claude Opus 5.5?
The cheapest hosted rate is $4.00 / $20.00 per 1M tokens via Anthropic.
How does Claude Opus 5.5 compare with Claude Opus 5?
Anthropic calls Claude Opus 5.5 a major step up from Claude Opus 5 that needs less compute to serve and writes more clearly, and says it resists prompt injection better. Thinking can no longer be disabled and forced tool use now returns an error. Same 1M-token context and text and image input. Claude Opus 5.5 lists at 20% less per 1M input tokens and 20% less per 1M output tokens than Claude Opus 5. It came out 2 months later and has a newer knowledge cutoff (June 2026 against May 2026).
Can I self-host Claude Opus 5.5?
No. Anthropic does not publish the weights; Claude Opus 5.5 is available only through hosted APIs.
More from Anthropic
-
Claude Opus 5
1M context · cutoff May 2026
From $5.00 / $25.00 /1M in / out at the cheapest provider
-
Claude Opus 4.7
1M context · cutoff Jan 2026
From $5.00 / $25.00 /1M in / out at the cheapest provider
-
Claude Opus 4.8
1M context · cutoff Jan 2026
From $5.00 / $25.00 /1M in / out at the cheapest provider
-
Claude Opus 4.6
1M context · cutoff May 2025
From $5.00 / $25.00 /1M in / out at the cheapest provider
-
Claude Opus 4.5
200K context · cutoff May 2025
From $5.00 / $25.00 /1M in / out at the cheapest provider
-
Claude Sonnet 4.6
1M context · cutoff Aug 2025
From $3.00 / $15.00 /1M in / out at the cheapest provider
-
Claude Sonnet 4
200K context · cutoff Mar 2025
From $3.00 / $15.00 /1M in / out at the cheapest provider
-
Claude Sonnet 4.5
200K context · cutoff Jan 2025
From $3.00 / $15.00 /1M in / out at the cheapest provider