Anthropic: Claude Opus 5.5
UnavailableClaude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code review and bug finding, financial and scientific analysis, and reading dense charts, diagrams, and screenshots, and it is more careful than its predecessor about only stating figures and citing sources it can back up. The model completes comparable tasks in fewer steps and with fewer tokens than Opus 5, and reports on its work in plainer language, with clear updates on what it did, what it found, and what it needs from the user. Thinking is always adaptive, so effort is the main lever for trading off depth, latency, and cost, and lower effort settings remain effective for latency-sensitive workloads.
- By
- Anthropic
- Input
- Text, Image, File
- Output
- Text
- Context
- 1M tokens
- Max output
- 128K tokens
- Published
- 2026-09-22
- Capabilities
- ReasoningMultimodalLong context
Providers
The provider that serves this model. Click the provider row to inspect live telemetry, pricing, and supported parameters.
| Provider | Input / 1M | Output / 1M | Context | Latency P50 | Throughput P50 | Success 24h |
|---|---|---|---|---|---|---|
 Anthropic anthropic · offline | 208x Rp83.200/1M | 1,040x Rp416.000/1M | 1M | — | — | — |
Uptime
Share of requests that succeeded, per provider.
AnthropicNo traffic| 05:00 PM | no traffic |
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Last 24 hours, per hour. Measured from requests through Morphic; none yet.
Throughput
P50 output tokens per second, whole request.
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Last 24 hours, per hour. Measured from requests through Morphic; none yet.
Latency
P50 time to the full response.
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Last 24 hours, per hour. Measured from requests through Morphic; none yet.
Activity
Tokens processed per day over the last 30 days.
| Oct 4 | 0 |
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| Oct 5 | 0 |
| Oct 6 | 0 |
| Oct 7 | 0 |
| Oct 8 | 0 |
| Oct 9 | 0 |
| Oct 10 | 0 |
| Oct 11 | 0 |
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| Oct 13 | 0 |
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| Oct 26 | 0 |
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| Oct 28 | 0 |
| Oct 29 | 0 |
| Oct 30 | 0 |
| Oct 31 | 0 |
| Nov 1 | 0 |
| Nov 2 | 0 |
Counts every request routed through Morphic.
Related models
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Anthropic: Claude Sonnet 5.5Claude Sonnet 5.5 is Anthropic’s upgraded Sonnet-class model, delivering stronger performance than Claude Sonnet 5 while running over 30% faster and at lower cost for many workloads. It is designed for agentic coding, tool use, and everyday professional tasks, making it well suited for developers and teams building fast, capable AI agents.
Anthropic: Claude Fable 5.1Claude Fable 5.1 is Anthropic’s latest model for demanding reasoning and long-horizon agentic work, with stronger performance in long-running coding, multistep research, and document, spreadsheet, and slide workflows. It supports text and image inputs, text output, a 1M-token context window, and adaptive thinking that is always on with effort-based steering.
Anthropic: Claude Opus 5Claude Opus 5 is Anthropic’s flagship Opus-series model for advanced reasoning, coding, and high-value knowledge work, delivering frontier-level performance close to Claude Fable 5 at roughly half the cost. It supports text, image, and file inputs with text output, offers a 1M-token context window, and is well suited for complex software engineering, scientific research, and long-horizon agentic workflows.
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