API pricing
Prompt caching and batch API prices
Reading a prompt from the cache costs 2 % to 25 % of the normal input price for the 18 models whose provider lists a cache price; the OpenRouter list also carries cache-read prices for 209 models, shown on their model cards and used by the model picker; on OpenRouter, 61 of 79 batch listings cost exactly half the standard price, and 7 cost more on at least one side (prices as listed in the United States on ).
Cache prices on provider price lists
| Model | Input, per 1M | Cache read, per 1M | Cache write, per 1M | Cache storage, per 1M |
|---|---|---|---|---|
| GPT-6 AstraOpenAI | $10.00 | $1.0010 % of input | $12.50×1.25 input | UnknownNot listed |
| GPT-6 SolOpenAI | $2.00 | $0.2010 % of input | $2.50×1.25 input | UnknownNot listed |
| GPT-6.1 SolOpenAI | $2.00 | $0.105 % of input | $2.50×1.25 input | UnknownNot listed |
| GPT-6 LunaOpenAI | $0.10 | $0.0110 % of input | $0.125×1.25 input | UnknownNot listed |
| Claude Fable 5.1Anthropic | $10.00 | $0.252.5 % of input | $12.50 5 min$20.00 1 hour | UnknownNot listed |
| Claude Opus 5.5Anthropic | $4.00 | $0.205 % of input | $5.00 5 min$8.00 1 hour | UnknownNot listed |
| Claude Sonnet 5.5Anthropic | $2.00 | $0.105 % of input | $2.50 5 min$4.00 1 hour | UnknownNot listed |
| Claude Haiku 5.5Anthropic | $0.10 | $0.0110 % of input | $0.125 5 min$0.20 1 hour | UnknownNot listed |
| Gemini 3.1 Pro PreviewGoogle | $2.00 | $0.2010 % of input | UnknownNot listed | $4.50 per hour |
| Gemini 3.8 FlashGoogle | $0.75 | $0.07510 % of input | UnknownNot listed | $0.50 per hour |
| DeepSeek V4 Pro 0813DeepSeek | $1.32 | $0.0443.3 % of input | UnknownNot listed | UnknownNot listed |
| DeepSeek V4.1 Flash 1017DeepSeek | $0.30 | $0.0062 % of input | UnknownNot listed | UnknownNot listed |
| Grok 4.7xAI | $2.00 | $0.5025 % of input | UnknownNot listed | UnknownNot listed |
| Mistral Medium 3.5Mistral | $1.50 | $0.1510 % of input | UnknownNot listed | UnknownNot listed |
| Mistral Large 4Mistral | $0.70 | $0.0710 % of input | UnknownNot listed | UnknownNot listed |
| Mistral Large 3 2512Mistral | $0.50 | $0.0510 % of input | UnknownNot listed | UnknownNot listed |
| Kimi K3MoonshotAI | $3.00 | $0.3010 % of input | UnknownNot listed | UnknownNot listed |
| GLM 5.3Z.ai | $1.40 | $0.2618.6 % of input | UnknownNot listed | UnknownNot listed |
Published Provider price lists, prices as listed in the United States on . “Not listed”: the price list does not publish that price. Anthropic lists one write price for a 5-minute cache and one for a 1-hour cache.
What the cache does to a task
| Model | L2, no cache | L2, 75 % cached | Change | L3, no cache | L3, 85 % cached | Change |
|---|---|---|---|---|---|---|
| GPT-6 AstraOpenAI | $1.74 | $0.480 | −72.4 % | $13.61 | $2.87 | −78.9 % |
| GPT-6 SolOpenAI | $0.348 | $0.096 | −72.4 % | $2.72 | $0.574 | −78.9 % |
| GPT-6.1 SolOpenAI | $0.348 | $0.082 | −76.5 % | $2.72 | $0.452 | −83.4 % |
| GPT-6 LunaOpenAI | $0.017 | $0.0048 | −72.4 % | $0.136 | $0.029 | −78.9 % |
| Claude Fable 5.1Anthropic | $1.74 | $0.374 | −78.5 % | $13.61 | $1.96 | −85.6 % |
| Claude Opus 5.5Anthropic | $0.696 | $0.164 | −76.5 % | $5.44 | $0.904 | −83.4 % |
| Claude Sonnet 5.5Anthropic | $0.348 | $0.082 | −76.5 % | $2.72 | $0.452 | −83.4 % |
| Claude Haiku 5.5Anthropic | $0.017 | $0.0048 | −72.4 % | $0.424 | $0.082 | −80.7 % |
| Gemini 3.1 Pro PreviewGoogle | $0.354 | $0.100 | −71.9 % | $2.74 | $0.546 | −80.1 % |
| Gemini 3.8 FlashGoogle | $0.131 | $0.035 | −73.1 % | $1.02 | $0.198 | −80.6 % |
| DeepSeek V4 Pro 0813DeepSeek | $0.222 | $0.041 | −81.3 % | $1.77 | $0.218 | −87.7 % |
| DeepSeek V4.1 Flash 1017DeepSeek | $0.051 | $0.0097 | −81.0 % | $0.405 | $0.047 | −88.3 % |
| Grok 4.7xAI | $0.336 | $0.124 | −63.1 % | $2.69 | $0.858 | −68.1 % |
| Mistral Medium 3.5Mistral | $0.261 | $0.070 | −73.1 % | $2.04 | $0.396 | −80.6 % |
| Mistral Large 4Mistral | $0.118 | $0.029 | −75.7 % | $0.940 | $0.172 | −81.7 % |
| Mistral Large 3 2512Mistral | $0.084 | $0.020 | −75.7 % | $0.671 | $0.123 | −81.7 % |
| Kimi K3MoonshotAI | $0.522 | $0.140 | −73.1 % | $4.08 | $0.792 | −80.6 % |
| GLM 5.3Z.ai | $0.236 | $0.075 | −68.3 % | $1.88 | $0.493 | −73.8 % |
Calculated The same tasks as in the task cost calculator, 20 tasks an hour, so a 5-minute cache stays warm between tasks. With cache, the cached share of the step 1 input is read at the cache-read price; from step 2 the whole earlier context is read from cache and only the new tokens of the step are written at the cache-write price (at the input price where no write price is listed), as providers bill a loop that resends its history. Storage fees are not included.
Batch prices on OpenRouter 79 models
| Model | Standard, in / out | Batch, in / out | Batch input vs standard | Batch output vs standard |
|---|---|---|---|---|
| Claude Fable 5Anthropic | $10.00 / $50.00 | $5.00 / $25.00 | −50.0 % | −50.0 % |
| Claude Fable 5.1Anthropic | $10.00 / $50.00 | $5.00 / $25.00 | −50.0 % | −50.0 % |
| Claude Haiku 4.5Anthropic | $1.00 / $5.00 | $0.50 / $2.50 | −50.0 % | −50.0 % |
| Claude Haiku 5.5Anthropic | $0.10 / $0.50 | $0.05 / $0.25 | −50.0 % | −50.0 % |
| Claude Opus 4.1Anthropic | $15.00 / $75.00 | $7.50 / $37.50 | −50.0 % | −50.0 % |
| Claude Opus 4.5Anthropic | $5.00 / $25.00 | $2.50 / $12.50 | −50.0 % | −50.0 % |
| Claude Opus 4.6Anthropic | $5.00 / $25.00 | $2.50 / $12.50 | −50.0 % | −50.0 % |
| Claude Opus 4.7Anthropic | $5.00 / $25.00 | $2.50 / $12.50 | −50.0 % | −50.0 % |
| Claude Opus 4.8Anthropic | $5.00 / $25.00 | $2.50 / $12.50 | −50.0 % | −50.0 % |
| Claude Opus 5Anthropic | $5.00 / $25.00 | $2.50 / $12.50 | −50.0 % | −50.0 % |
| Claude Opus 5.5Anthropic | $4.00 / $20.00 | $2.00 / $10.00 | −50.0 % | −50.0 % |
| Claude Sonnet 4.5Anthropic | $3.00 / $15.00 | $1.50 / $7.50 | −50.0 % | −50.0 % |
| Claude Sonnet 4.6Anthropic | $3.00 / $15.00 | $1.50 / $7.50 | −50.0 % | −50.0 % |
| Claude Sonnet 5Anthropic | $2.00 / $10.00 | $1.00 / $5.00 | −50.0 % | −50.0 % |
| Claude Sonnet 5.5Anthropic | $2.00 / $10.00 | $1.00 / $5.00 | −50.0 % | −50.0 % |
| DeepSeek V4 Flash 0731DeepSeek | $0.0434 / $0.30 | $0.048 / $0.144 | +10.6 % | −52.0 % |
| DeepSeek V4.1 Flash 0910DeepSeek | $0.051 / $0.567 | $0.011 / $0.20 | −78.4 % | −64.7 % |
| DeepSeek V4.1 Flash 1017DeepSeek | $0.006 / $0.50 | $0.011 / $0.20 | +83.3 % | −60.0 % |
| Gemini 3 Flash PreviewGoogle | $0.50 / $3.00 | $0.25 / $1.50 | −50.0 % | −50.0 % |
| Gemini 3.1 Flash LiteGoogle | $0.25 / $1.50 | $0.125 / $0.75 | −50.0 % | −50.0 % |
| Gemini 3.1 Pro PreviewGoogle | $2.00 / $12.00 | $1.00 / $6.00 | −50.0 % | −50.0 % |
| Gemini 3.5 FlashGoogle | $1.50 / $9.00 | $0.75 / $4.50 | −50.0 % | −50.0 % |
| Gemini 3.5 Flash LiteGoogle | $0.30 / $2.50 | $0.15 / $1.25 | −50.0 % | −50.0 % |
| Gemini 3.6 FlashGoogle | $0.75 / $3.75 | $0.375 / $1.875 | −50.0 % | −50.0 % |
| Gemini 3.7 FlashGoogle | $0.75 / $3.75 | $0.375 / $1.875 | −50.0 % | −50.0 % |
| Gemini 3.8 FlashGoogle | $0.825 / $4.125 | $0.375 / $1.875 | −54.5 % | −54.5 % |
| Gemini 4 ArgonGoogle | $2.00 / $10.00 | $1.00 / $5.00 | −50.0 % | −50.0 % |
| Muse Glimmer 30BMeta | $0.30 / $1.20 | $0.24 / $0.96 | −20.0 % | −20.0 % |
| MiniMax M3MiniMax | $0.30 / $1.20 | $0.224 / $0.88 | −25.3 % | −26.7 % |
| Mistral Medium 3.5Mistral | $1.50 / $7.50 | $0.75 / $3.75 | −50.0 % | −50.0 % |
| Kimi K3MoonshotAI | $0.192 / $16.00 | $0.917 / $6.00 | +377.6 % | −62.5 % |
| Morph V3 FastMorph | $0.80 / $1.20 | $0.40 / $0.60 | −50.0 % | −50.0 % |
| Morph V3 LargeMorph | $0.90 / $1.90 | $0.45 / $0.95 | −50.0 % | −50.0 % |
| GPT-4.1OpenAI | $2.00 / $8.00 | $1.00 / $4.00 | −50.0 % | −50.0 % |
| GPT-4.1 MiniOpenAI | $0.40 / $1.60 | $0.20 / $0.80 | −50.0 % | −50.0 % |
| GPT-4.1 NanoOpenAI | $0.10 / $0.40 | $0.05 / $0.20 | −50.0 % | −50.0 % |
| GPT-4oOpenAI | $2.50 / $10.00 | $1.25 / $5.00 | −50.0 % | −50.0 % |
| GPT-4o-miniOpenAI | $0.15 / $0.60 | $0.075 / $0.30 | −50.0 % | −50.0 % |
| GPT-5OpenAI | $1.25 / $10.00 | $0.625 / $5.00 | −50.0 % | −50.0 % |
| GPT-5 MiniOpenAI | $0.25 / $2.00 | $0.125 / $1.00 | −50.0 % | −50.0 % |
| GPT-5 NanoOpenAI | $0.05 / $0.40 | $0.025 / $0.20 | −50.0 % | −50.0 % |
| GPT-5 ProOpenAI | $15.00 / $120.00 | $7.50 / $60.00 | −50.0 % | −50.0 % |
| GPT-5.1OpenAI | $1.25 / $10.00 | $0.625 / $5.00 | −50.0 % | −50.0 % |
| GPT-5.2OpenAI | $1.75 / $14.00 | $0.875 / $7.00 | −50.0 % | −50.0 % |
| GPT-5.2 ProOpenAI | $21.00 / $168.00 | $10.50 / $84.00 | −50.0 % | −50.0 % |
| GPT-5.4OpenAI | $2.50 / $15.00 | $1.25 / $7.50 | −50.0 % | −50.0 % |
| GPT-5.4 MiniOpenAI | $0.75 / $4.50 | $0.375 / $2.25 | −50.0 % | −50.0 % |
| GPT-5.4 NanoOpenAI | $0.20 / $1.25 | $0.10 / $0.625 | −50.0 % | −50.0 % |
| GPT-5.4 ProOpenAI | $30.00 / $180.00 | $15.00 / $90.00 | −50.0 % | −50.0 % |
| GPT-5.5OpenAI | $5.00 / $30.00 | $2.50 / $15.00 | −50.0 % | −50.0 % |
| GPT-5.5 ProOpenAI | $30.00 / $180.00 | $15.00 / $90.00 | −50.0 % | −50.0 % |
| GPT-5.6 LunaOpenAI | $0.20 / $1.20 | $0.10 / $0.60 | −50.0 % | −50.0 % |
| GPT-5.6 Luna ProOpenAI | $0.20 / $1.20 | $0.10 / $0.60 | −50.0 % | −50.0 % |
| GPT-5.6 SolOpenAI | $4.00 / $20.00 | $2.00 / $10.00 | −50.0 % | −50.0 % |
| GPT-5.6 Sol ProOpenAI | $4.00 / $20.00 | $2.00 / $10.00 | −50.0 % | −50.0 % |
| GPT-5.6 TerraOpenAI | $2.00 / $12.00 | $1.00 / $6.00 | −50.0 % | −50.0 % |
| GPT-5.6 Terra ProOpenAI | $2.00 / $12.00 | $1.00 / $6.00 | −50.0 % | −50.0 % |
| GPT-6 AstraOpenAI | $10.00 / $50.00 | $5.00 / $25.00 | −50.0 % | −50.0 % |
| GPT-6 Astra ProOpenAI | $10.00 / $50.00 | $5.00 / $25.00 | −50.0 % | −50.0 % |
| GPT-6 LunaOpenAI | $0.10 / $0.50 | $0.05 / $0.25 | −50.0 % | −50.0 % |
| GPT-6 Luna ProOpenAI | $0.10 / $0.50 | $0.05 / $0.25 | −50.0 % | −50.0 % |
| GPT-6 SolOpenAI | $2.00 / $10.00 | $1.00 / $5.00 | −50.0 % | −50.0 % |
| GPT-6 Sol ProOpenAI | $2.00 / $10.00 | $1.00 / $5.00 | −50.0 % | −50.0 % |
| GPT-6.1 SolOpenAI | $2.00 / $10.00 | $1.00 / $5.00 | −50.0 % | −50.0 % |
| GPT-6.1 Sol ProOpenAI | $2.00 / $10.00 | $1.00 / $5.00 | −50.0 % | −50.0 % |
| GPT-6.1 TerraOpenAI | $1.00 / $5.00 | $0.50 / $2.50 | −50.0 % | −50.0 % |
| GPT-6.1 Terra ProOpenAI | $1.00 / $5.00 | $0.50 / $2.50 | −50.0 % | −50.0 % |
| gpt-oss-120bOpenAI | $0.15 / $0.60 | $0.0296 / $0.136 | −80.3 % | −77.3 % |
| gpt-oss-20bOpenAI | $0.03 / $0.13 | $0.024 / $0.112 | −20.0 % | −13.8 % |
| o3OpenAI | $2.00 / $8.00 | $1.00 / $4.00 | −50.0 % | −50.0 % |
| Qwen3.7 PlusQwen | $0.32 / $1.28 | $0.23 / $0.92 | −28.1 % | −28.1 % |
| Qwen3.8 27BQwen | $0.15 / $1.875 | $0.16 / $2.00 | +6.7 % | +6.7 % |
| Inkling SmallThinking Machines | $0.45 / $1.20 | $0.36 / $0.96 | −20.0 % | −20.0 % |
| Grok 4.3xAI | $1.25 / $2.50 | $1.00 / $2.00 | −20.0 % | −20.0 % |
| Grok 4.6xAI | $2.00 / $6.00 | $1.60 / $4.80 | −20.0 % | −20.0 % |
| Grok 4.7xAI | $2.00 / $6.00 | $1.60 / $4.80 | −20.0 % | −20.0 % |
| GLM 5.2Z.ai | $0.006 / $6.80 | $0.623 / $1.271 | +10283.3 % | −81.3 % |
| GLM 5.3Z.ai | $0.0699 / $1.40 | $0.45 / $2.00 | +543.8 % | +42.9 % |
| GLM 5.3 FlashZ.ai | $0.0335 / $0.083 | $0.05 / $0.18 | +49.3 % | +116.9 % |
Published OpenRouter models list, prices as listed in the United States on · USD per 1M tokens. Standard: the model’s own listing; batch: its batch listing. A batch listing can be served by a different provider than the cheapest standard one.
All API prices · Cheapest per task · Long-context cliff · Rate limits by tier · What breaks when you switch · Rate limit planner · Task cost calculator · All models on OpenRouter · How we check prices