v1.4.10

What's Changed

Claude Opus 5 support — Opus 5 previously fell through to the legacy Claude model type, which sent temperature and top_p (rejected with a 400) and left reasoning, vision, tool use, and prompt caching disabled.

• Added Claude Opus 5 model type, ID detection (claude-opus-5), and inference range.
• Omitted sampling parameters and raised the default max tokens to 32000 so adaptive thinking has room alongside the response.
• Adaptive thinking is on by default; disabling it now sends reasoning_config.type=disabled explicitly, with xhigh/max effort clamped to high since Opus 5 rejects that combination.
• Enabled vision, tool use, streaming tool use, prompt caching, document chat, and system prompts.

OpenAI GPT-5.6 Sol, Terra, and Luna — the new capability tiers are now selectable, served through the bedrock-mantle Responses API.

• Added the three tiers with full model ID matching ahead of GPT-5.5/5.4.
• Gave each tier its own token budget and reasoning effort baseline (Sol 32K/high, Terra 16K/medium, Luna 8K/low), replacing a hardcoded 8192/medium that also applied to GPT-5.5/5.4.
• Exposed xhigh and max reasoning effort levels, which GPT-5.6 supports.
• Surfaced GPT-5.6 prompt caching from input_tokens_details.

Region handling — Mantle model availability is now a single source of truth and is enforced on requests, not just when listing models. A conversation saved against a model no longer calls an endpoint that doesn't serve it after a region switch, and errors surface a readable message instead of a raw NSError.

Fixes

• Fixed Claude Sonnet 5 missing from the thinking toggle and MCP tool menu, where a claude-sonnet-4 substring check never matched it.
• Fixed the Reasoning Effort picker rendering its label vertically.

Full Changelog: v1.4.9...v1.4.10