Catalog/ № 040
OpenAI API
shipGPT-5 family and o-series reasoning models behind one API.
platform.openai.comVerified 2026-08-15
ledger entry · observed by @whysanesanders
The safe default for production: a broad model ladder from nano to frontier and the most complete tooling (batch, structured outputs, agents). Rarely the cheapest, rarely the wrong choice.
Known limitations
- Premium pricing at the frontier tier.
- Model deprecations move fast.
- Conservative rate limits on new accounts.
Facts
- pricing
- paid1
- price note
- pay-as-you-go, from $0.20/1M input (GPT-5.6 Luna); no free tier
- free tier
- no
- open source
- no
- api
- yes
- self-host
- no
- category
- models-api
Sources
If we can't show the source, we don't print the number.
Same shelf — models-api
Anthropic API
models-api
Claude models direct — the practitioner's pick for coding and long-form text.
API
paidpay-as-you-go, from $1/1M input (Haiku 4.5); small free credits for new users
Cohere
models-api
Enterprise-focused models — Command for generation, Rerank for retrieval.
APIFREE TIER
freemiumfree trial keys; pay-as-you-go from $0.50/1M input tokens
DeepSeek API
models-api
Open-weights lab with frontier-ish reasoning at disruptive prices.
API
paidno free API tier; V4 Flash $0.44/$1.32, V4 Pro $1.32/$3.96 per 1M (peak; off-peak 50% off)