Anthropic has enhanced the Claude AI Sonnet 4 AI model by implementing an astounding 1 million token context window. He now has the ability to process the equivalent of 75,000 lines of code, which is 5 times the amount he could previously process.
This upgrade is specifically aimed at helping enterprises and developers handle large scale requests and code bases.
Implications for Developers
Claude AI token limit was previously 200,000 tokens. With the new upgrade of 1 million tokens, he has the ability to analyze entire software projects. Claude now surpasses the 400,000 token limit of OpenAI’s GPT-5.
For instance:
- Claude can now process the entire “Lord of the Rings” trilogy and provide the user with a single response.
- Upload entire app codebases and not have to deal with the hassle of splitting them into parts.
- This expanded window is accessible via Anthropic’s API, Amazon Bedrock, and Google Cloud’s Vertex AI.
- Erasing the Competition Between GPT-5 and Others
Anthropic’s Claude has become the leading choice for AI coding platforms such as:
- GitHub’s Microsoft Copilot
- Windsurf
- Anysphere’s Cursor
But the competition is getting fierce. We know GPT-5 has maintained a strong coding performance alongside competitive pricing. On the other hand, Gemini 2.5 Pro by Google supports a 2 million token window and Llama 4 Scout from Meta boasts 10 million tokens.
Why Claude AI Window Size Matters
In coding, context helps a model as follows:
- – Review entire projects and make necessary changes.
- Perform long agentic coding tasks for hours while retaining accuracy.
- Recall all steps in complex multi-step processes.
Brad Abrams, Claude AI product lead at Anthropic, mentioned that developers will get “a lot of benefit” from this upgrade. He added that Claude’s appreciation of context focused on the window’s size and making the “effective context window” smarter, so that he truly understands what is given.
Quote Blocked
In the case of a prompt exceeding the 200,000 tokens, Anthropic will charge excess for the API:
- 6.00 per million input tokens (previously 3).
- 22.50 per million output tokens (previously 15).
This is the extra computing power required to process oversized requests.
The Bigger Picture
OpenAI appears most preoccupied in monetizing ChatGPT through consumer subscriptions, whereas Anthropic’s revenue streams primarily from the enterprise API. This upgrade has certainly reinforced Claude’s position in the AI-for-developers segment.
Last week, Anthropic increased coding capabilities with the release of Claude Opus 4.1 just a week earlier.
Key Takeaways Claude AI
- Claude AI Sonnet 4 now accepts prompts of 1 million tokens.
- That’s 5× its old limit and 2.5× more than GPT-5.
- Accessible via Anthropic’s API, Amazon Bedrock, and Google Vertex AI.
- Enables developers to work on entire projects at once.
- Pricing increases on tokens over 200,000.
- A counter-strategy to GPT-5, Google Gemini, and Meta Llama.