Claude Opus 4.5
by AnthropicChatretires not before 2026-11-24
Flagship Claude model for deep reasoning, coding, and long-horizon agents
- Context
- 200K tokens
- Max output
- 64,000 tokens
- Released
- 2025-11-24
- Weights
- Closed
anthropic/claude-opus-4-5 · also seen as claude-opus-4-5-20251101, databricks-claude-opus-4-5, claude-opus-4-5-think, global.anthropic.claude-opus-4-5-20251101-v1:0, +16 more
Specifications
Full facts as recorded, incl. what is unknown.
- Released
- 2025-11-24
- Weights
- Closed
- Input
- Text, Image, PDF
- Output
- Text
- Context window
- 200,000 max across endpoints
- Max output
- 64,000
- Providers
- 18 + 26 gateways, not counted as providers
- Epoch Capabilities Index
- 150.2 ± 2.4 against price
- Direct price range
- $5.00–$6.88 in · $25.00–$34.39 out per 1M tokens · 16 of 18 providers have a comparable price
More details
- Last updated
- 2026-06-11
- Knowledge cutoff
- 2025-05
- Developer country
- United States of America
Capabilities
Across all endpoints: supported if any endpoint supports it.
- Tool calling
- Parallel toolsunknown
- Structured output
- Reasoning
- Image input
- PDF input
- Audio input
- Audio outputunknown
- Video input
- Prompt caching
- Web search
- Computer use
- System messagesunknown
- Assistant prefill
- Temperature
- Streamingunknown
- Attachments
Endpoints
One row per provider and variant; gateways are listed separately.
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Price history
Atom feedNo change since 19 Oct 2026. The cheapest direct price has been $5.00 in / $25 out per 1M tokens at Anthropic on every data refresh since then.
Tracked from 19 Oct 2026, the earliest refresh this model's headline price can be rebuilt from. Headline-eligible direct prices only, so a price the sanity check flags never draws a spike. Series as JSON
Cost calculator
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Similarly priced models
Blended rate per 1M tokens, each at its own cheapest provider (10M input : 2M output mix).
| Model | Blended/1M | In/1M | Out/1M | Context | vs Claude Opus 4.5 |
|---|---|---|---|---|---|
| ChatGPT-4oOpenAI | $7.50 | $5.00 | $20 | 128K | +0% |
| gpt-realtime-2OpenAI | $7.33 | $4.00 | $24 | 128K | −2% cheaper |
| GPT-Realtime-2.1OpenAI | $7.33 | $4.00 | $24 | 128K | −2% cheaper |
| Claude Opus LatestAnthropic | $6.67 | $4.00 | $20 | 1M | −11% cheaper |
| Claude Opus 5.5Anthropic | $6.67 | $4.00 | $20 | 1M | −11% cheaper |
| Muse WonderMeta | $6.67 | $4.00 | $20 | 1.05M | −11% cheaper |
| Muse WonderMeta | $6.67 | $4.00 | $20 | 1.05M | −11% cheaper |
| GPT-5.6 Sol ProOpenAI | $6.67 | $4.00 | $20 | 1.05M | −11% cheaper |
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| Claude Fable Latest | 2026-06-09 | 1M | $10 via NanoGPT |