FullsendAI vs DeepInfra
FullsendAI vs DeepInfra
On the models both serve, FullsendAI charges list prices and DeepInfra is lower whenever it runs a promotion. Choose DeepInfra for the lowest price on open models, batch discounts and GPUs. Choose FullsendAI for one account with a web chat, one-command setup for your coding agents, crypto payments and our own models.
Which one fits
Choose FullsendAI if…
- You want a web chat and your coding agents on the same balance as your API key.
- You want to pay in crypto. DeepInfra lists card, prepaid balance or invoice; crypto not listed.
- You want Nef 4.0 and Sifu 3.5, our models tuned for security research and code.
- You want our public rankings and side-by-side comparisons to pick a model.
Choose DeepInfra if…
- You want the lowest per-token price on a model both serve: DeepInfra sets the list price and runs promotions below it.
- You need batch (20% off), Flex or Priority tiers, image or speech models.
- You want to rent GPUs or deploy your own model.
- You want a larger catalogue: 173 models on its OpenAI-compatible endpoint.
At a glance
Each DeepInfra cell links to its source and the date we checked it.
What it is
- FullsendAI
- One API key, a web chat and one-command setup for coding agents
- DeepInfra
- Inference host on its own GPUs; also GPU rentalSource ·
Models
- FullsendAI
- 4 models
- DeepInfra
- 173 models on its OpenAI-compatible endpointSource ·
Markup on model prices
- FullsendAI
- 0% on open models
- DeepInfra
- Sets its own list pricesSource ·
Fee on card top-ups
- FullsendAI
- None
- DeepInfra
- None statedSource ·
Ways to pay
- FullsendAI
- Card and crypto (USDC, USDT and more)
- DeepInfra
- Card, prepaid balance or invoice; crypto not listedSource ·
OpenAI-compatible API
- FullsendAI
- Yes (Chat Completions)
- DeepInfra
- YesSource ·
Anthropic Messages API
- FullsendAI
- Yes; works with Claude Code
- DeepInfra
- Yes; documents Claude Code setupSource ·
Claude, GPT and Gemini
- FullsendAI
- Not yet
- DeepInfra
- Claude and Gemini; no GPTSource ·
Routing and failover
- FullsendAI
- We pick the host, with automatic failover; no provider controls
- DeepInfra
- Single host; Priority (1.5×) and Flex (0.8×) tiersSource ·
Where inference runs
- FullsendAI
- United States, every model
- DeepInfra
- United StatesSource ·
Prompt logging by default
- FullsendAI
- API prompts not stored unless you turn on 30-day body storage
- DeepInfra
- Not stored or logged; Google and Anthropic models follow their own termsSource ·
Batch discount
- FullsendAI
- No batch API yet
- DeepInfra
- 20% offSource ·
Rate limits
- FullsendAI
- Per key and per model; budgets per key
- DeepInfra
- 200 concurrent requests per account, raisableSource ·
Web chat
- FullsendAI
- Yes
- DeepInfra
- YesSource ·
Desktop coding agent
- FullsendAI
- Not yet: one command sets up Claude Code, Codex and more
- DeepInfra
- No desktop agent; Claude Code setup guideSource ·
Own tuned models
- FullsendAI
- Nef 4.0 and Sifu 3.5, tuned for security research and code
- DeepInfra
- NoSource ·
| Feature | FullsendAI | DeepInfra |
|---|---|---|
| What it is | One API key, a web chat and one-command setup for coding agents | Inference host on its own GPUs; also GPU rentalSource · |
| Models | 4 models | 173 models on its OpenAI-compatible endpointSource · |
| Markup on model prices | 0% on open models | Sets its own list pricesSource · |
| Fee on card top-ups | None | None statedSource · |
| Ways to pay | Card and crypto (USDC, USDT and more) | Card, prepaid balance or invoice; crypto not listedSource · |
| OpenAI-compatible API | Yes (Chat Completions) | YesSource · |
| Anthropic Messages API | Yes; works with Claude Code | Yes; documents Claude Code setupSource · |
| Claude, GPT and Gemini | Not yet | Claude and Gemini; no GPTSource · |
| Routing and failover | We pick the host, with automatic failover; no provider controls | Single host; Priority (1.5×) and Flex (0.8×) tiersSource · |
| Where inference runs | United States, every model | United StatesSource · |
| Prompt logging by default | API prompts not stored unless you turn on 30-day body storage | Not stored or logged; Google and Anthropic models follow their own termsSource · |
| Batch discount | No batch API yet | 20% offSource · |
| Rate limits | Per key and per model; budgets per key | 200 concurrent requests per account, raisableSource · |
| Web chat | Yes | YesSource · |
| Desktop coding agent | Not yet: one command sets up Claude Code, Codex and more | No desktop agent; Claude Code setup guideSource · |
| Own tuned models | Nef 4.0 and Sifu 3.5, tuned for security research and code | NoSource · |
Prices, model for model
USD per million tokens, input / output. FullsendAI prices are read live from our catalogue. DeepInfra's are what its public API listed on the date shown, after any promotion it was running.
DeepSeek V4.1 FlashDeepSeek
- FullsendAI
- Not offered yet
- DeepInfra
- $0.14 / $0.42Promotional pricedeepseek-ai/DeepSeek-V4.1-FlashSource ·
GLM 5.3 FlashZ.ai
- FullsendAI
- Not offered yet
- DeepInfra
- $0.075 / $0.25Promotional pricezai-org/GLM-5.3-FlashSource ·
GPT OSS 120BOpenAI
- FullsendAI
- Not offered yet
- DeepInfra
- $0.037 / $0.17openai/gpt-oss-120bSource ·
GPT OSS 20BOpenAI
- FullsendAI
- Not offered yet
- DeepInfra
- $0.03 / $0.14openai/gpt-oss-20bSource ·
Kimi K2.6Moonshot AI
- FullsendAI
- Not offered yet
- DeepInfra
- $0.75 / $3.50moonshotai/Kimi-K2.6Source ·
Qwen3.8 MaxAlibaba
- FullsendAI
- Not offered yet
- DeepInfra
- $1.65 / $4.951Qwen/Qwen3.8-MaxSource ·
DeepSeek V4 Pro 0813DeepSeek
- FullsendAI
- Not offered yet
- DeepInfra
- $1.30 / $2.60deepseek-ai/DeepSeek-V4-Pro-0813Source ·
Claude Opus 5.5Anthropic
- FullsendAI
- Not offered yet
- DeepInfra
- $4.00 / $20.00anthropic/claude-opus-5-5Source ·
Gemini 3.1 ProGoogle
- FullsendAI
- Not offered yet
- DeepInfra
- $2.00 / $12.00google/gemini-3.1-proSource ·
| Model | FullsendAI | DeepInfra |
|---|---|---|
| DeepSeek V4.1 FlashDeepSeek | Not offered yet | $0.14 / $0.42Promotional pricedeepseek-ai/DeepSeek-V4.1-FlashSource · |
| GLM 5.3 FlashZ.ai | Not offered yet | $0.075 / $0.25Promotional pricezai-org/GLM-5.3-FlashSource · |
| GPT OSS 120BOpenAI | Not offered yet | $0.037 / $0.17openai/gpt-oss-120bSource · |
| GPT OSS 20BOpenAI | Not offered yet | $0.03 / $0.14openai/gpt-oss-20bSource · |
| Kimi K2.6Moonshot AI | Not offered yet | $0.75 / $3.50moonshotai/Kimi-K2.6Source · |
| Qwen3.8 MaxAlibaba | Not offered yet | $1.65 / $4.951Qwen/Qwen3.8-MaxSource · |
| DeepSeek V4 Pro 0813DeepSeek | Not offered yet | $1.30 / $2.60deepseek-ai/DeepSeek-V4-Pro-0813Source · |
| Claude Opus 5.5Anthropic | Not offered yet | $4.00 / $20.00anthropic/claude-opus-5-5Source · |
| Gemini 3.1 ProGoogle | Not offered yet | $2.00 / $12.00google/gemini-3.1-proSource · |
What a month costs
Same model, same tokens, no cache hits. Neither charges a fee to top up by card.
No model has a current price on every side today, so there is no like-for-like example to show. See the price table above.
Key differences
Prices
FullsendAI charges list prices with no markup on open models and no top-up fee. DeepInfra sets its own list prices and sometimes discounts them; while a promotion runs, it is the lower of the two on that model. We don't claim to be cheaper than DeepInfra on any model both serve.
What comes with the key
A FullsendAI key also works in our web chat, and one command connects it to Claude Code, Codex and other coding agents, so one balance covers the API, chat and coding. DeepInfra has a chat page and documents Claude Code setup by hand.
Platform
DeepInfra is a full inference platform: batch jobs at a discount, Flex and Priority tiers, embeddings, speech, images, video and GPU rental. FullsendAI is narrower: chat, embedding and rerank models through the OpenAI and Anthropic APIs, with a chat app and an agent on top.
Payments and privacy
DeepInfra bills by card, prepaid balance or invoice, and says it doesn't store API data, with exceptions for Google and Anthropic models. FullsendAI takes cards and crypto with no top-up fee, and stores API prompts only when you turn on body storage, for 30 days.
Where DeepInfra is the better choice
- Price: the same list price or lower on every model both serve, and lower still during its promotions.
- Breadth: 173 models on its OpenAI-compatible endpoint, plus speech, image and video models.
- Cost controls: batch (20% off) and a Flex tier at 0.8× for work that can wait.
- Infrastructure: dedicated deployments and GPUs by the hour.
Migrate in 2 minutes
Change the base URL, the key and the model name. Everything else stays: streaming, tool calls and images work as before.
from openai import OpenAI
client = OpenAI(
base_url="https://fullsendai.com/v1",
api_key="fs_live_...",
)
reply = client.chat.completions.create(
model="deepseek-v4.1-flash",
messages=[{"role": "user", "content": "Hello"}],
)Full setup for every tool is in the quickstart and agent guides.
Questions
Is FullsendAI cheaper than DeepInfra?
No. On the models both serve, our prices are the same as DeepInfra's list prices, or higher while DeepInfra runs a promotion (prices checked Oct 30, 2026). Choose FullsendAI for what comes with the key, not for a lower token price.
So why use FullsendAI?
One account for the API, a web chat and your coding agents, set up in one command; crypto payments with no fee; our own models, Nef 4.0 and Sifu 3.5; and public rankings to choose between models.
Can I use my DeepInfra code unchanged?
Almost. Change the base URL, the API key and the model name; the request and response formats are the standard OpenAI Chat Completions and Anthropic Messages ones. Options specific to one provider have no equivalent here, so remove them.
Where does FullsendAI run models?
In the United States, every model. Requests are never routed abroad, not even when a host is busy.
Does FullsendAI keep my prompts?
Not from the API unless you ask: by default only what billing needs (tokens, cost, timing, status). If you turn on body storage for a project, its requests and replies are kept for 30 days so you can read them in Logs, then deleted.
Can I pay FullsendAI with crypto?
Yes. Top up or prepay a plan in USDC, USDT and more, with no fee on the top-up. Cards work too, through Stripe.
Related comparisons
One key. Every model. No top-up fee.
Works with the OpenAI and Anthropic SDKs, Claude Code, Codex and other coding agents. Every model runs in the USA.