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Cheapest models

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

All90d30d
Open weights
All typesTextImageAudio
340 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.

#ModelCapabilityReasoningCodingContext$/M
301Gemini 3.1 Pro Preview Custom ToolsGoogle———1.05M$4.50
302Nano Banana Pro (Gemini 3 Pro Image Preview)Google———66K$4.50
303Nano Banana Pro (Gemini 3 Pro Image)Google———131K$4.50
304Kimi K3batchMoonshot AI · +1 variant———1.05M$4.56
305GPT-5.3-CodexOpenAI156.8——400K$4.81
306GPT-5.2 ChatOpenAI———128K$4.81
307GPT-5.2-CodexOpenAI———400K$4.81
308Claude Opus 4.5batchAnthropic · +1 variant———200K$5.00
309Claude Opus 4.6batchAnthropic · +1 variant———1M$5.00
310Claude Opus 4.7batchAnthropic · +1 variant———1M$5.00
311Claude Opus 4.8batchAnthropic · +1 variant———1M$5.00
312Claude Opus 5batchAnthropic · +1 variant———1M$5.00
313Nova Premier 1.0Amazon———1M$5.00
314MiMo-V2.6-Pro-UltraSpeedNEWXiaomi———1.05M$5.44
315GPT-5.5batchOpenAI · +1 variant———1.05M$5.63
316Claude Sonnet 4Anthropic141.779.2—200K$6.00
317Ember-1NEWFireworks AI———1.05M$6.00
318Qwen3.8 Max PrimeNEWAlibaba (Qwen)———1M$6.00
319Sonar ProPerplexity———200K$6.00
320Sonar Pro SearchPerplexity———200K$6.00
321GPT-4 TurbobatchOpenAI · +1 variant———128K$7.50
322GPT-4o (2024-05-13)OpenAI———128K$7.50
323GPT-5.4 Image 2OpenAI———272K$9.75
324Claude Fable 5batchAnthropic · +1 variant———1M$10.00
325Claude Fable 5.1NEWbatchAnthropic · +1 variant———1M$10.00
326GPT-5 ImageOpenAI———400K$10.00
327GPT-6 AstraNEWbatchOpenAI · +1 variant———1.05M$10.00
328GPT-6 Astra ProNEWbatchOpenAI · +1 variant———1.05M$10.00
329Fugu UltraSakana AI———1M$11.25
330Fugu Ultra v2NEWSakana AI———1M$11.25
331GPT Chat LatestOpenAI———400K$11.25
332Claude Opus 4.1batchAnthropic · +1 variant———200K$15.00
333GPT-5 ProbatchOpenAI · +1 variant———400K$20.63
334o1OpenAI141.976.8—200K$26.25
335GPT-5.2 ProbatchOpenAI · +1 variant———400K$28.88
336GPT-5.4 ProbatchOpenAI · +1 variant———1.05M$33.75
337GPT-5.5 ProbatchOpenAI · +1 variant———1.05M$33.75
338o3 ProOpenAI147.4——200K$35.00
339GPT-4OpenAI———8K$37.50
340o1-proOpenAI———200K$262.50
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