ZenMux Pay-As-You-Go API

LLM 6.6/10

Cheapest GLM 5.2 API verified (Jul 2026): $0.43/M input, $1.35/M output, $0.08/M cache read, 1M context; Kimi K2.7 Code $0.43/$1.79 (+HighSpeed tier); OpenAI- AND Anthropic-compatible gateway, no rate/concurrency limits, production allowed

ZenMux Pay-As-You-Go API scores 6.6/10 for free value in LLM. The main constraint: Paid — Pay-as-you-go, ~$1.35/M output (GLM 5.2). Cheapest GLM 5.2 API verified (Jul 2026): $0.43/M input, $1.35/M output, $0.08/M cache read, 1M context; Kimi K2.7 Code $0.43/$1.79; OpenAI- AND Anthropic-compatible gateway, no rate limits, production allowed.

Category LLM Kind Paid plan Caveats Gateway (OpenRouter-style) routing to upstream providers — margin included in price; input-validation quirks can 4xx some normal requests (reported Jul 2026); subscription Builder tiers have separate limits and a no-production clause — PAYG is the production path

Free value score

6.6 / 10

Show the math

Model Quality 9.2/10

value = 51 artificial_analysis_score

weighted score = 0.2 * 9.2/10

Access 10/10

value = 10/10

weighted score = 0.1 * 10/10

Price Efficiency 5.4/10

value = 1515152 tok/$

weighted score = 0.7 * 5.4/10

Key metrics

GLM-5.2 51 Best model

$0.66/M Price

What you get

Paid — Pay-as-you-go, ~$1.35/M output (GLM 5.2). Cheapest GLM 5.2 API verified (Jul 2026): $0.43/M input, $1.35/M output, $0.08/M cache read, 1M context; Kimi K2.7 Code $0.43/$1.79; OpenAI- AND Anthropic-compatible gateway, no rate limits, production allowed

~95% cheaper than Opus 4.8 at near-Opus capability: heavy agentic sessions land at ~$0.24/M blended thanks to session stickiness + high cache-hit (user report); ~740K output tokens per $1 on GLM 5.2

Gotchas

No gotchas documented yet. Contribute one if you know a constraint we missed.

Sources

"z-ai/glm-5.2: prompt $0.4302/M, completion $1.3520/M, cache read $0.0799/M, context_length 1,000,000 (live model-list API, fetched 2026-07-04)"
https://zenmux.ai/api/v1/models
"moonshotai/kimi-k2.7-code: prompt $0.4258/M, completion $1.7927/M, cache read $0.0852/M (live model-list API, fetched 2026-07-04)"
https://zenmux.ai/api/v1/models

paid value llm-providers

Open service ← All LLM

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