Sabiá 4 Thinking
1M-context Portuguese reasoning model — frontier quality at a third of the cost.
About
Sabiá 4 Thinking is Maritaca AI's reasoning variant of the Sabiá 4 family, with a 1-million-token context window and 32K max output tokens. Maritaca reports that running its full Portuguese evaluation suite (medical knowledge, POSCOMP computing exam, PoETa v2) on Sabiá 4 Thinking costs less than half of GPT-5.4 and about a third of Claude Opus 4.8 — positioning it as frontier-level Portuguese quality without frontier-level cost. A BR-SP variant exists for São Paulo-region deployment.
Limitations: reasoning models generate more tokens per task, so per-token list price understates real cost — though Maritaca's suite-cost comparison accounts for this. Portuguese-first; the value proposition is weakest for English-only workloads. API-only, no open weights.
Specs
Context window
Pricing
Free quota
API access
Weights
Released
Benchmarks
Vendor-reported suite cost: <50% of GPT-5.4, ~33% of Opus 4.8 on Portuguese evals
Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.
Use cases
Trust score — 7/10
Scored 7/10 (metrics tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 56; Trending score 66/100 from researcher assessment.