Provider-listed token prices

Cheapest LLM API models

A price-first ranking limited to catalog models with both USD input and output prices represented in the shared schema.

Evidence-led ranking.

No affiliate payouts or hidden composite score. Missing evidence stays missing.

Ranking basis

Ordered by the simple sum of listed input and output USD prices per one million tokens; this is a comparison device, not a workload bill.

Comparability limit: Caching, batch modes, long-context tiers, tools, regional billing, hosting, and token mix can change effective cost.

Ranked snapshot

1. Mistral Small 3.1 — $0.40 combined

Lowest represented input-plus-output list-price sum. A compact multimodal model aimed at low-latency assistants and local deployment. Its Apache license and moderate size make it unusually practical for customization.

Watch for: trails frontier models on complex reasoning; smaller ecosystem than llama.

2. Hy3 Preview — $0.77 combined

Second-lowest represented sum in the current catalog. A sparse reasoning, coding, and tool-use model.

Watch for: weight license unavailable; combined weights and api access do not fit the access field.

3. Mercury 2 — $1.00 combined

Third-lowest represented sum in the current catalog. A diffusion language model for reasoning, coding, editing, tools, and real-time agents.

Watch for: parameters unavailable; license unavailable.

How to choose

  1. Recalculate with your actual input-to-output ratio.
  2. Check cache-hit, cache-miss, batch, and long-context rules.
  3. A cheaper token can cost more when quality failures increase retries.

Evaluation recipe

Build a permissioned set of representative tasks, including expected failures and ambiguous inputs. Run candidates with equivalent prompts and tools. Score task success, latency, total tokens, retries, and human correction time. Keep provider-reported results separate from private measurements.

Decision rule: choose the least expensive option that reliably clears your quality, safety, latency, license, and deployment thresholds—not merely the first card.