Richard Feldman 47fc345f7f Add Claude Opus 4.6 and 1M context window model variants (#48508)
<img width="588" height="485" alt="Screenshot 2026-02-05 at 1 29 10 PM"
src="https://github.com/user-attachments/assets/f3d36c8b-b371-4226-af60-bdc2c6b34009"
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<img width="586" height="468" alt="Screenshot 2026-02-05 at 1 30 15 PM"
src="https://github.com/user-attachments/assets/878e91ad-948c-4b35-a37b-f5a8db7e0b3f"
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This adds Claude Opus 4.6 as a new Anthropic model, along with 1M
context window variants for both Opus 4.6 and Sonnet 4.5.

## Opus 4.6

Adds `ClaudeOpus4_6` and `ClaudeOpus4_6Thinking` with the same
properties as other Claude 4+ models (200k context, 8192 max output
tokens, fine-grained tool streaming beta header).

## 1M context variants

Adds 1M context window variants for Sonnet 4.5 and Opus 4.6. These are
identical to their base models except:
- Context window is 1,000,000 tokens instead of 200,000
- They send the `context-1m-2025-08-07` beta header

Release Notes:

- Added Claude Opus 4.6
- Now Claude Opus 4.6 and Sonnet 4.5 BYOK models support variations that
have context windows of 1 million tokens (and have different pricing)
2026-02-05 18:50:04 +00:00
2025-09-23 16:49:45 +00:00
2026-01-22 23:57:26 +05:30
2026-01-13 03:03:30 +00:00
2026-01-05 16:34:36 -05:00
WIP
2023-12-14 09:25:14 -07:00
2024-09-30 17:46:21 -04:00
2026-02-03 20:31:02 -07:00
2025-02-04 09:02:59 -05:00
2025-02-04 09:02:59 -05:00
2026-01-06 12:49:51 -08:00
2025-10-27 13:27:59 -04:00
2025-10-17 18:58:14 +00:00

Zed

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