Anthropic Claude
Claude is Anthropic's family of large language models, offered through the Claude apps (web, desktop and mobile), the pay-per-token Claude API, and major cloud platforms including Amazon Bedrock and Google Cloud Vertex AI. As of September 2026 the current models are Claude Fable 5.1, Opus 5.5, Sonnet 5 and Haiku 4.5, each at a different price and speed point, with Fable 5.1, Opus 5.5 and Sonnet 5 supporting up to 1 million tokens of context.
Facts checked on against the sources listed at the end of this page.
- Pricing
- Pay as you goPaid from $20 a month for Claude Pro; API from $1 input per million tokens on Haiku 4.5
- Open source
- NoProprietary
- GitHub stars
- 2,132
- npm downloads a week
- 54Mup 16% on the week before
- Latest release
- google-cloud-s…1 week ago
- Releases in 90 days
- 10about 3 a month
A good fit for
- Adding a capable language model to a product through the Claude API
- Coding agents and tools that need long context, such as whole-repository work
- Teams already using AWS or Google Cloud who want Claude billed through that account
- Long documents: contracts, research papers and codebases up to 1 million tokens
Not a good fit for
- Running a model on your own hardware, since Anthropic doesn't release open-weight models
- Image or video generation, since Claude reads images but doesn't create them
- Fixed, predictable costs at high volume, since API spend grows with tokens used
Anthropic Claude pricing
The Claude apps have a free plan, Pro at $20 a month and Max from $100 a month. The API is billed per million tokens: $1 input / $5 output on Haiku 4.5 up to $10 input / $50 output on Fable 5.1, with Sonnet 5 and Opus 5.5 in between.
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | Chat on web, desktop and mobile, with web search and file creation. |
| Pro | $20 a month, or $17 a month billed yearly | More usage, Claude Code and more models. |
| Max | From $100 a month | 5x or 20x the usage of Pro and higher output limits. |
| API: Haiku 4.5 | $1 input / $5 output per million tokens | Fastest and cheapest current model. |
| API: Sonnet 5 | $2 input / $10 output per million tokens | Balanced speed and quality. |
| API: Opus 5.5 | $4 input / $20 output per million tokens | Long-running coding and knowledge work. |
| API: Fable 5.1 | $10 input / $50 output per million tokens | Most demanding reasoning and agent work. |
Prices in USD, checked on 27 September 2026. Current prices on claude.com.
Main features
- Four model tiers
- Fable 5.1, Opus 5.5, Sonnet 5 and Haiku 4.5, priced from $1 to $10 per million input tokens.
- Long context
- Up to 1 million tokens of context and up to 128,000 output tokens on Fable 5.1, Opus 5.5 and Sonnet 5.
- Extended and adaptive thinking
- Models can reason step by step before answering, with controls for how much effort they spend.
- Claude Code
- A coding agent that works in the terminal and IDEs, included with Pro and Max plans.
- Claude API
- Messages API with official SDKs for building Claude into applications.
- Available on major clouds
- The same models are offered through Amazon Bedrock and Google Cloud Vertex AI.
About Anthropic Claude
Claude is the model family built by Anthropic, offered at four price and capability tiers: Claude Fable 5.1 for the most demanding reasoning and long-running agent work, Opus 5.5 for long-running coding and knowledge work, Sonnet 5 for a balance of speed and quality, and Haiku 4.5 for speed and low cost. Fable 5.1, Opus 5.5 and Sonnet 5 support up to 1 million tokens of context; Haiku 4.5 supports 200,000.
Individuals and teams access Claude through the Claude apps on web, desktop and mobile, with free, Pro, Max and Team subscription tiers, while developers access the same models through the pay-per-token Claude API for building Claude into their own products.
The same models are also available through Amazon Bedrock and Google Cloud Vertex AI, letting organizations already using those clouds bill Claude usage through their existing cloud account rather than a separate Anthropic contract.
- Made by
- Anthropic PBC
- Launched
- 2021
- Free plan
- Yes, in the Claude apps; the API has no free tier and is billed per token
- Available on
- Claude API, Amazon Bedrock, Google Cloud Vertex AI, Web, desktop and mobile apps, Claude Code
Usage and activity
Weekly npm downloads of @anthropic-ai/sdk, last 12 months.
Recent releases
- google-cloud-sdk-v0.0.171 week ago
- aws-sdk-v0.7.71 week ago
- foundry-sdk-v0.5.21 week ago
- bedrock-sdk-v0.34.21 week ago
- vertex-sdk-v0.20.21 week ago
- google-cloud-sdk-v0.0.151 week ago
Anthropic Claude alternatives
Anthropic Claude compared
Anthropic ClaudevsGemma 4
Gemma 4 is Google DeepMind's current family of lightweight, open-weight language models, announced in April 2026, with weights free to download and run on hardware from cloud servers down to laptops and phones.
Anthropic ClaudevsOpenAI API
Anthropic Claude is accessed through four model tiers, Fable 5.1, Opus 5.5, Sonnet 5 and Haiku 4.5, three of which support up to 1 million tokens of context.
Questions about Anthropic Claude
What are Anthropic's latest Claude models?
As of September 2026 the current models are Claude Fable 5.1, Claude Opus 5.5, Claude Sonnet 5 and Claude Haiku 4.5.
How much does the Claude API cost?
It's billed per million tokens. Input costs $1 on Haiku 4.5, $2 on Sonnet 5, $4 on Opus 5.5 and $10 on Fable 5.1; output costs five times the input price on each.
Is Claude free to use?
Yes, the Claude apps have a free plan with web search and file creation. Paid plans start at $20 a month for Pro. The API has no free plan and is billed per token.
Can I use Claude on AWS or Google Cloud?
Yes, Claude models are available through Amazon Bedrock and Google Cloud Vertex AI, billed through your cloud account.
Sources and links
Work on Anthropic Claude? Claim this listing. Something wrong or out of date? Suggest a correction. Stats come from the public GitHub and npm APIs and update every day.