LLMs that support prompt caching
inclusionAI: Ling 3.0 Flash is the cheapest option at $0.021 per million input tokens. Prompt caching bills repeated prefixes at a steep discount, which for agents and long system prompts is usually the single largest saving available. These models support it.
233 models qualify
Ranked by blended cost - input weighted 75%, output 25%.
| # | Model | Blended / 1M | Input / 1M | Output / 1M | Context | Capabilities |
|---|---|---|---|---|---|---|
| 1 | Ling 3.0 Flash inclusionAI | $0.032 | $0.021 | $0.063 | 262K | ReasoningToolsOpen weights |
| 2 | gpt-oss-20b OpenAI | $0.036 | $0.018 | $0.090 | 131K | ReasoningToolsOpen weights |
| 3 | Nex-N2.5-Mini Nex AGI | $0.044 | $0.025 | $0.100 | 262K | ReasoningVisionOpen weights |
| 4 | GLM 5.3 Flash Z.ai | $0.053 | $0.046 | $0.074 | 1.0M | ReasoningToolsVisionOpen weights |
| 5 | Qwen3.7 Flash Qwen | $0.055 | $0.030 | $0.130 | 1M | ReasoningToolsVision |
| 6 | Llama 3.1 8B Instruct Meta Llama | $0.057 | $0.050 | $0.080 | 131K | ToolsOpen weights |
| 7 | Schematron V2 Turbo Inference.net | $0.060 | $0.030 | $0.150 | 128K | Open weights |
| 8 | Mercury 2.5 Inception | $0.068 | $0.040 | $0.150 | 260K | ReasoningTools |
| 9 | Laguna XS 2.1 Poolside | $0.075 | $0.060 | $0.120 | 262K | Free tierReasoningToolsOpen weights |
| 10 | Granite 4.2 8B IBM Granite | $0.082 | $0.060 | $0.150 | 131K | ReasoningToolsOpen weights |
| 11 | Solar Mini 4 Upstage | $0.087 | $0.050 | $0.200 | 524K | ReasoningTools |
| 12 | Ling 3.0 Flash VL inclusionAI | $0.090 | $0.060 | $0.180 | 131K | ReasoningToolsVisionOpen weights |
| 13 | Ternary Bonsai 2 9B PrismML | $0.092 | $0.080 | $0.130 | 262K | ReasoningToolsVisionOpen weights |
| 14 | Schematron V2 Small Inference.net | $0.095 | $0.050 | $0.230 | 128K | Open weights |
| 15 | Ministral 3 3B 2512 Mistral AI | $0.100 | $0.100 | $0.100 | 131K | ToolsVisionOpen weights |
| 16 | Nemotron 3.5 Lightning NVIDIA | $0.103 | $0.070 | $0.200 | 262K | Free tierReasoningToolsOpen weights |
| 17 | Nemotron 3 Nano 30B A3B NVIDIA | $0.105 | $0.060 | $0.240 | 262K | ReasoningToolsOpen weights |
| 18 | Ling 3.1 Flash inclusionAI | $0.112 | $0.075 | $0.225 | 1M | ReasoningTools |
| 19 | Laguna S 2.1 Poolside | $0.113 | $0.090 | $0.180 | 1.0M | Free tierReasoningToolsOpen weights |
| 20 | DeepSeek V4 Flash 0423 DeepSeek | $0.114 | $0.091 | $0.182 | 1.0M | ReasoningToolsOpen weights |
| 21 | Nex-N2.5-Pro Nex AGI | $0.119 | $0.075 | $0.250 | 262K | ReasoningToolsVisionOpen weights |
| 22 | $0.125 | $0.100 | $0.200 | 1.0M | ReasoningToolsVision | |
| 23 | $0.125 | $0.100 | $0.200 | 1.0M | ReasoningToolsVision | |
| 24 | UI-TARS 7B ByteDance | $0.125 | $0.100 | $0.200 | 128K | VisionOpen weights |
| 25 | gpt-oss-safeguard-20b OpenAI | $0.131 | $0.075 | $0.300 | 131K | ReasoningToolsOpen weights |
Frequently asked
What is the cheapest LLM for cached prompts?
inclusionAI: Ling 3.0 Flash at $0.021 per million input tokens and $0.063 per million output tokens, with a 262K token context window.
How many models qualify for cached prompts?
233 of the 359 models tracked here meet the criteria for this list.
How much do prices vary within this category?
By roughly 950×, from Ling 3.0 Flash at the bottom to Claude Opus 4.1 at the top.