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Opinionated picks for agents
OpenAPI

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Pick up to three. Scores are curated estimates on a 0–10 scale. Lock-in: higher = worse.

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DimensionOpenAIAnthropicGoogle AI (Gemini)
Overall8.28.48.4
Capability fit9.69.79.2
Price / performance6.26.88.8
Latency / reliability8.88.78.5
Developer & agent DX9.59.28.2
Privacy / data retention7.89.08.0
Lock-in risk (higher = worse)7.26.56.0
Maturity / track record9.89.49.6
PricingGPT-5.6 tiers (Sol/Terra/Luna) roughly $5/$30 to $1/$6 per 1M tokens; prompt caching with explicit breakpoints; batch discounts. Media (images/audio) billed separately.Sonnet 5 ~$2/$10 per 1M; Opus ~$5/$25; Haiku 4.5 ~$1/$5; Fable higher. Prompt caching + batch. Managed Agents session-hour fees. US-only inference ~1.1x.Gemini 3.x Pro often ~$2/$12 under 200K; Flash tiers much cheaper. 1M context. Vertex for enterprise. Batch half-price common.