Feature Request: Increase context window beyond 200K for Max subscription users

[uguremrah]

Feature Request

Current behavior:
Claude Code hard-caps the context window at 200K tokens for all users, including Max ($100/mo) and Max 20x ($200/mo) subscribers. This applies even when using Claude Opus 4.6, which supports up to 1M tokens via the API.

Requested behavior:
Increase the available context window for Max subscription users in Claude Code. Even an intermediate step to 400K tokens would be a meaningful improvement for users working on large codebases, long refactoring sessions, or complex multi-file tasks.

Why this matters:

• Max subscribers are paying a premium specifically for heavy usage of Claude's most capable models
• The underlying model (Opus 4.6) already supports 1M tokens — the 200K cap is a Claude Code limitation, not a model limitation
• The current 200K window (minus system prompt, tools, skills, and autocompact buffer) leaves only ~150K of usable space for actual conversation
• Larger codebases and longer sessions frequently hit this limit, triggering autocompact and losing valuable context

Related issues:

• Claude Opus 4.6 context display shows 200k instead of 1M #24208 — Context display shows 200k instead of 1M
• Opus 4.6 update implies 1M context but Claude Code hard-caps at 200K — causes session crashes (Max 20x) #23714 — Opus 4.6 hard-caps at 200K, causes session crashes
• Opus 4.6 (1M context) hits 'API Error: Rate limit reached' on Max subscription #28975 — Rate limit errors with 1M context on Max subscription
• [BUG] [1M] Sonnet 1M context window disappeared after Claude Code update to v2.1.45 — regression on Max plan ($200/mo) #26428 — Sonnet 1M context window regression on Max plan

Suggested approach:

• A configurable context window size (e.g., via claude config) would give power users control over the trade-off between context size and response quality/speed
• Even a modest increase to 400K–500K would significantly improve the experience for Max subscribers without requiring the full 1M beta

🤖 Generated with Claude Code

[github-actions]

Found 3 possible duplicate issues:

1. [FEATURE] Bring 1M context window to Max plan subscribers #23879
2. Feature Request: Enable 1M Context Window for Claude Code #5644
3. [Feature Request] Enable 1M token context window for Claude Max subscribers #26003

This issue will be automatically closed as a duplicate in 3 days.

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🤖 Generated with Claude Code

[github-actions]

This issue has been automatically closed as a duplicate of #23879.

If this is incorrect, please re-open this issue or create a new one.

🤖 Generated with Claude Code

[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.