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[FEATURE]: allow config to opt out of Anthropic thinking block binding in V2 #48757
Description
- I have verified this feature I'm about to request hasn't been suggested before.
Describe the enhancement you want to request
OpenCode V2 automatically adds Anthropic thinking block-binding controls for Claude 5.1+ requests. Some Anthropic-compatible endpoints reject this field entirely with thinking.adaptive.block_binding: Extra inputs are not permitted.
V2 already has a runtime supportsThinkingBlockBinding compatibility override, but the V2 user configuration schema does not expose it. Please expose a per-model compatibility.supportsThinkingBlockBinding setting so users can set it to false when their deployment rejects block_binding.
When set to false, the request should omit thinking.block_binding and should not add thinking-binding-controls-2026-08-01 to anthropic-beta. When absent, the current automatic model-ID-based behavior should remain unchanged.
This is the V2 counterpart to #46820 and is related to #46729.
Activity
[-]feat(v2): allow config to opt out of Anthropic thinking block binding[/-][+][FEATURE]: allow config to opt out of Anthropic thinking block binding in V2[/+]github-actions commentedon Sep 13, 2026
Thanks for updating the issue! It now follows the contributing guidelines. We appreciate the clear description and the reference to related issues.
rekram1-node commentedon Oct 6, 2026
#52327
will be fixed in next release (v2.0.25)
DEAN-Cherry commentedon Oct 6, 2026
#48793 :(