Why a pay-per-token relay fits a day of coding
Here is the short version: SwiftRelay is a pay-per-token API relay, and you can be connected in minutes. There is no monthly fee and nothing to subscribe to. You top up a balance, and each call deducts only what it used. That is a friendly way to run a working day of Claude Haiku 4.5 without juggling a recurring bill for a service you use at a different pace every morning.
Think of it like a pit stop instead of a season pass. Some days you write a small script, patch a function and stop. Other days you refactor half a service and keep the model busy for hours. Pay-per-token billing through SwiftRelay scales with the actual work, so a quiet afternoon does not cost the same as a marathon sprint. You can also contrast this with keeping your own subscription or official account in general terms: instead of paying for a fixed block of access, you pay for the tokens your calls really consume.
SwiftRelay even starts you with a sign-up gift credit of $0.22, so you can take the first lap without reaching for your wallet. The pricing page shows current rates per 1M tokens, and your usage view lists tokens and cost per call, so every cent of a day's work is visible after the fact. That visibility is the whole point: you finish the day knowing exactly what the day cost.
Claude Haiku 4.5 rates on the SwiftRelay pricing page
Claude Haiku 4.5 carries the model id claude-haiku-4-5-20251001 on SwiftRelay, and its current prices per 1M tokens are as follows.
- Input: $0.3542 per 1M tokens.
- Output: $1.69 per 1M tokens.
- Cache read: $0.0278 per 1M tokens.
Input tokens are what you send in, output tokens are what the model writes back, and cache reads are the cheaper reads of material you have already supplied earlier in the session. Because the output rate is higher than the input rate, a coding day that asks many short questions and accepts long answers will lean more heavily on the output line. A day that reuses a large context, such as a repository you keep re-sending, leans more on input and cache reads.
For perspective, the same pricing page lists Claude Fable 5.1 at $3.44 input, $17.18 output and $0.2222 cache read per 1M tokens, and Claude Opus 5.5 at $1.53 input, $7.27 output and $0.0694 cache read per 1M tokens. Claude Sonnet 5 is listed at $1.01 input, $5.06 output and $0.0889 cache read, while Claude Sonnet 5.5 sits at $0.9792 input, $4.89 output and $0.0861 cache read. Haiku 4.5 is the entry point on that board, and SwiftRelay lets you switch between models as the job changes, with the rate card always visible before you commit.
Three worked examples of a day's cost
The following are examples only, worked out with the Claude Haiku 4.5 prices listed above. They illustrate how a day of coding can add up, so treat them as illustrations rather than a promise about your own usage.
- Example one, a light maintenance day: 500,000 input tokens, 100,000 output tokens and 2,000,000 cache read tokens. Input costs $0.1771, output costs $0.169, and cache reads cost $0.0556. The total for that day is $0.4017.
- Example two, a full feature day: 2,000,000 input tokens, 300,000 output tokens and 1,000,000 cache read tokens. Input costs $0.7084, output costs $0.507, and cache reads cost $0.0278. The total for that day is $1.2432.
- Example three, a heavy refactoring day: 5,000,000 input tokens, 1,000,000 output tokens and 4,000,000 cache read tokens. Input costs $1.771, output costs $1.69, and cache reads cost $0.1112. The total for that day is $3.5722.
Run those sums against SwiftRelay's top-up amounts and the shape of a normal week becomes obvious. The available top-ups are $1.39, $6.94, $13.89, $27.78, $69.44 and $138.89. A single light day fits inside the smallest top-up, while a week of feature-sized days sits comfortably within one of the mid-range amounts. Nothing expires on a schedule you have to track, and unused credit from a top-up can be refunded within 11 days, minus what was used and the payment fee.
Notice how the cache read rate shapes the heavy day. Four million cache read tokens add $0.1112, a small line next to the output cost. When you keep a large context warm across a long session, SwiftRelay's per-token pricing keeps the repeated reads inexpensive, and your usage list still shows the tokens and the cost per call so you can confirm the arithmetic yourself.
Connecting in minutes with the official Claude client
Claude models answer only through the official Claude Code or Claude Desktop client, version 2.1.285 or later. The setup is three lines, and SwiftRelay's promise is simple: copy three lines and run.
For Claude Code, the lines are:
01 export ANTHROPIC_BASE_URL=https://api.fastapirelay.com 02 export ANTHROPIC_AUTH_TOKEN=<your swft_ key>
claude
Point the client at the SwiftRelay API host, paste in your swft_ key, and launch. That is the whole lap: no monthly fee, no subscription, no waiting on a sales call. Your key comes from your SwiftRelay account, and you can hold up to 20 live API keys per account, which is handy when you want a separate key per project or per machine.
Because the base URL and the token are plain environment variables, the same three-line pattern works whether you are running a quick script from a terminal or settling in for a longer session. Claude Desktop 2.1.285 or later uses the same SwiftRelay endpoint and key. Once you are connected, the pricing page tells you what each model costs before you call it, and the usage view tells you what each call actually cost afterwards.
Balances, referrals and support for the whole sprint
SwiftRelay sells no plans. You top up a balance, and every call deducts only what it used. That makes the top-up amounts the only decisions in front of you: $1.39 for a quick trial, $6.94 or $13.89 for a steady week, and $27.78, $69.44 or $138.89 when you want a longer runway. The $0.22 sign-up gift credit gives you a small head start, and the refund window on unused credit within 11 days of a top-up, minus what was used and the payment fee, keeps an early experiment low-stakes.
There is also a way to share the track. You receive 14% of each top-up by someone you invited, and 3% from the people they invite. Those rewards can be withdrawn, with a minimum of $4.86, or moved into your balance to fund more Claude Haiku 4.5 calls directly.
Support runs through Messages in the dashboard, and login is required. There is no support email to hunt for, so a question about a call, a key or a balance stays in the same place as your usage history. That is the clean finish line: the numbers are visible, the billing follows the work, and the next session is one stopwatch away.
Stopwatch, clean lap, no plan to cancel: sign up for SwiftRelay today and put Claude Haiku 4.5 to work on your next coding day.