The task profile is search tool invocation + JSON extraction — not
reasoning or creative work. Mini models handle this equally well at
3-5x lower cost per call.
OpenAI changes:
- Rename is_mainline_openai_model -> is_search_capable_model
- Include mini variants (gpt-5-mini, gpt-4.1-mini) in candidate pool
- Exclude gpt-4o-mini (no domain filtering) and nano (no web_search)
- select_openai_model() now prefers mini within newest generation
- OPENAI_FALLBACK_MODELS: gpt-5-mini first, mainline as last resort
- MODEL_FALLBACK_ORDER: same mini-first ordering
xAI changes:
- Switch alias from grok-4-1-fast (reasoning) to
grok-4-1-fast-non-reasoning — same token price, faster response,
no wasted reasoning tokens for structured extraction
Cost per Reddit search call: ~$0.015 (gpt-5-mini) vs ~$0.044 (gpt-4.1)
Model optimization (mini-first fallback, is_search_capable_model) belongs
in PR #67. This PR stays focused on endpoint/API fixes only.
Also fixes pre-existing test bug where test asserted gpt-4o was first in
MODEL_FALLBACK_ORDER when it was actually gpt-4.1.
- Instagram: migrate /v1/ to /v2/ ScrapeCreators endpoint (v1 deprecated Feb 2026)
- OpenAI: switch fallback chain to [gpt-5-mini, gpt-4.1-mini, gpt-4.1] (8x cheaper,
gpt-5-mini is the first mini model supporting web_search with filters.allowed_domains)
- xAI: use explicit grok-4-1-fast-non-reasoning (bare name aliases to reasoning variant)
- xAI: pass from_date/to_date natively to x_search tool config instead of prompt-only
- Polymarket: correct rate limit comment (15K/10s, not 350/10s)
- test_models: update xAI model expectations to grok-4-1-fast (matching
current XAI_POLICY_MAP)
- test_openai_reddit: update fallback order assertion to gpt-4.1 (matching
current MODEL_FALLBACK_ORDER)
- test_codex_auth: expect 'reddit' not 'web' when no API keys (Reddit
is available via public JSON fallback)
- test_truthsocial: convert from pytest-style classes to unittest.TestCase,
fix import path to use sys.path.insert pattern (matching all other tests)
- Fix invalid YAML in SKILL.md argument-hint (closes#8)
Wrapped value in single quotes to properly escape double quotes
- Add automatic model fallback for GPT-5 access errors (closes#9)
When OpenAI returns 400 for unverified orgs, retry with gpt-4o
- Add tests for model fallback logic
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Jeffrey Sperling