Cheapest AI Models
Sticker price is the wrong place to start, but it is where most budgets end. These are the lowest-cost models per million tokens that still charge real money (free-tier and unpriced models are excluded so the ranking reflects production spend). Cheapest rarely means best: a model at a fraction of the price can cost more overall if it needs three retries to get the answer right. Read price as one input, not the verdict.
Showing top 25 of 614 matching models · last synced 20 hours ago
Top pick right now: Ling-2.6-flash from OpenRouter. At $0.03/Mtok output it is the cheapest model here that still charges for usage.
| # | Model | Provider | Input $/Mtok | Output $/Mtok | Context | Capabilities |
|---|---|---|---|---|---|---|
| 1 |
Ling-2.6-flash
|
OpenRouter | $0.01 | $0.03 | 262,144 | tools, structured output |
| 2 |
Mistral Nemo
|
OpenRouter | $0.019 | $0.03 | 131,072 | tools, structured output, open |
| 3 |
Llama Guard 3 8B
|
OpenRouter | $0.484 | $0.03 | 131,072 | open |
| 4 | Ministral 3B (latest) | Mistral | $0.04 | $0.04 | 128,000 | tools, open |
| 5 |
Llama 3 8B Lunaris
|
OpenRouter | $0.04 | $0.05 | 8,192 | structured output, open |
| 6 |
Ling-3.0-flash
|
OpenRouter | $0.021 | $0.063 | 262,144 | tools, reasoning, open |
| 7 |
Llama 3.1 8B
|
Groq | $0.05 | $0.08 | 131,072 | tools, open |
| 8 |
Mistral Small 3
|
OpenRouter | $0.05 | $0.08 | 32,768 | structured output, open |
| 9 |
Llama 3.1 8B Instruct
|
OpenRouter | $0.05 | $0.08 | 131,072 | tools, structured output, open |
| 10 |
Gemma 2 9B
|
OpenRouter | $0.03 | $0.09 | 8,192 | open |
| 11 |
Gemma 3 4B
|
OpenRouter | $0.05 | $0.1 | 131,072 | vision, structured output, open |
| 12 | Ministral 8B (latest) | Mistral | $0.1 | $0.1 | 128,000 | tools, open |
| 13 |
Granite 4.1 8B
|
OpenRouter | $0.05 | $0.1 | 131,072 | tools, structured output, open |
| 14 |
GLM 4 32B
|
OpenRouter | $0.1 | $0.1 | 128,000 | tools |
| 15 |
Ministral 3 3B 2512
|
OpenRouter | $0.1 | $0.1 | 131,072 | vision, tools, structured output, open |
| 16 |
Reka Edge
|
OpenRouter | $0.1 | $0.1 | 16,384 | vision, tools, structured output, open |
| 17 |
Nex-N2-Mini
|
OpenRouter | $0.025 | $0.1 | 262,144 | vision, tools, reasoning, structured output, open |
| 18 |
MythoMax 13B
|
OpenRouter | $0.08 | $0.11 | 8,192 | structured output, open |
| 19 |
Granite 4.0 Micro
|
OpenRouter | $0.017 | $0.112 | 131,000 | open |
| 20 |
Devstral Small
|
OpenRouter | $0.06 | $0.12 | 128,000 | tools, open |
| 21 |
Gemma 3n 4B
|
OpenRouter | $0.06 | $0.12 | 32,768 | structured output, open |
| 22 |
LFM2-24B-A2B
|
OpenRouter | $0.03 | $0.12 | 32,768 | open |
| 23 |
Laguna XS 2.1
|
OpenRouter | $0.06 | $0.12 | 262,144 | tools, reasoning, open |
| 24 |
GPT OSS 20B
|
OpenRouter | $0.03 | $0.13 | 131,072 | tools, reasoning, structured output, open |
| 25 |
Qwen3.7 Flash
|
OpenRouter | $0.03 | $0.13 | 1,000,000 | vision, tools, reasoning |
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Data synced daily from models.dev. Always verify pricing with the provider before deploying to production.