Claude Opus 3
by AnthropicChatretired 2026-01-05
Claude 3 Opus was Anthropic's most powerful model for highly complex tasks. It boasts top-level performance, intelligence, fluency, and understanding.
- Context
- 200K tokens
- Max output
- 4,096 tokens
- Released
- 2024-02-29
- Weights
- Closed
anthropic/claude-3-opus · also seen as anthropic.claude-3-opus-20240229-v1:0, eu.anthropic.claude-3-opus-20240229-v1:0, us.anthropic.claude-3-opus-20240229-v1:0, vertex_ai/claude-3-opus, +2 more
Specifications
Full facts as recorded, incl. what is unknown.
- Released
- 2024-02-29
- Weights
- Closed
- Input
- Text, Image
- Output
- Text
- Context window
- 200,000 max across endpoints
- Max output
- 4,096
- Providers
- 6 + 1 gateway, not counted as providers
- Epoch Capabilities Index
- 126.9 ± 4 against price
- Direct price range
- $15 in · $75 out per 1M tokens · 2 of 6 providers have a comparable price
More details
- Last updated
- 2024-02-29
- Knowledge cutoff
- 2023-08
- 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 cachingunknown
- Web searchunknown
- Computer useunknown
- 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 $15 in / $75 out per 1M tokens at Amazon Bedrock 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 3 |
|---|---|---|---|---|---|
| Claude Opus 4Anthropic | $22.50 | $13.50 | $67.50 | 200K | −10% cheaper |
| Claude Opus 4.1Anthropic | $22.50 | $13.50 | $67.50 | 200K | −10% cheaper |
| o1OpenAI | $22.50 | $15 | $60 | 200K | −10% cheaper |
| Nano Banana ProGoogle | $21.67 | $2.00 | $120 | 131K | −13% cheaper |
| GPT-5 ProOpenAI | $29.25 | $13.50 | $108 | 400K | +17% |
| o3-proOpenAI | $30 | $20 | $80 | 200K | +20% |
| Claude Fable LatestAnthropic | $16.67 | $10 | $50 | 1M | −33% cheaper |
| Claude Fable 5Anthropic | $16.67 | $10 | $50 | 1M | −33% cheaper |
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