01 /TOOLS / openai-api
OpenAI API
shipGPT-5 family and o-series reasoning models behind one API.
journal entry · observed by @whysanesanders · verified 2026-08-15
The safe default for production: a broad model ladder from nano to frontier and best-in-class 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
- paid
- price note
- GPT-5 $1.25/1M input, $10/1M output; mini from $0.25/1M input
- free tier
- no
- open source
- no
- api
- yes
- self-host
- no
- category
- models-api
Models used
Receipts
Same sector — models-api
Anthropic API
Claude models direct — the practitioner's pick for coding and long-form text.
models-api
paid · Sonnet $3/1M input, $15/1M output; Haiku from $0.80/1M input
API
Cohere
Enterprise-focused models — Command generation plus best-in-class Rerank.
models-api
freemium · free trial keys; pay-as-you-go from $0.50/1M input tokens
APIFREE TIER
DeepSeek API
Open-weights lab with frontier-ish reasoning at disruptive prices.
models-api
paid · deepseek-chat $0.27/1M input (cache miss), $1.10/1M output
API