Cheapest models

Ranked by blended API price (75% input + 25% output, USD per 1M tokens). Free promotional listings excluded.

0 models

Ranked by blended API price (75% input + 25% output, USD per 1M tokens). Free promotional listings excluded. Source: OpenRouter. Variants (reasoning effort, batch) are folded into one row.

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Claude Sonnet 5.5
Anthropic · 28 Sep 2026 · AA 56 · 1M · $4.00/M
Qwen3.8 Max Prime
Alibaba (Qwen) · 23 Sep 2026 · 1M · $6.00/M
GPT-6 Sol
OpenAI · 22 Sep 2026 · AA 47.5 · 1.05M · $4.00/M
GPT-6 Luna
OpenAI · 22 Sep 2026 · AA 37.3 · 1.05M · $0.20/M
GPT-6 Sol Pro
OpenAI · 22 Sep 2026 · 1.05M · $4.00/M
GPT-6 Luna Pro
OpenAI · 22 Sep 2026 · 1.05M · $0.20/M
Claude Opus 5.5
Anthropic · 22 Sep 2026 · AA 57.6 · 1M · $8.00/M
Grok 4.7
xAI · 21 Sep 2026 · AA 46.4 · 500K · $3.00/M

Not ranked until an independent evaluator (Epoch AI) publishes scores. We don't use vendor-reported benchmark claims for rankings.

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