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Where to buy LLM tokens: the cheapest gateway right now

One pick per tier — the lowest live per-token price across six gateways, refreshed continually, with a volatility read. Same model, wrong gateway, and you can pay several times as much.

Cheapest frontier model (Claude / GPT / Gemini class)

Claude Sonnet 5 — $2.00 in / $10.00 out per MTok
cheapest via Glama stable · use → · all gateways & history
Lowest input price across the gateways we track for this tier. Frontier models are usually identical across gateways (list passthrough); open-weight prices move, so watch the volatility tag.

Cheapest strong open-weight model (Llama / Qwen / DeepSeek / GLM)

GLM 5.2 — $0.02 in / $2.40 out per MTok
cheapest via OpenRouter volatile · use → · all gateways & history
Lowest input price across the gateways we track for this tier. Frontier models are usually identical across gateways (list passthrough); open-weight prices move, so watch the volatility tag.

Cheapest fast/cheap workhorse (flash-class)

DeepSeek V4 Flash — $0.03 in / $0.17 out per MTok
cheapest via OpenRouter volatile · use → · all gateways & history
Lowest input price across the gateways we track for this tier. Frontier models are usually identical across gateways (list passthrough); open-weight prices move, so watch the volatility tag.

Full table, every model, and per-model history on the LLM prices page. These are published list prices, not quotes; see methodology.