Subscription vs Pay-Per-Token API: Claude Pro, OpenCode Go
Break-even math using official plan rules and public model prices as of 2026-09-21, comparing Claude Pro, OpenCode Go and pay-as-you-go API usage.
Review date: 2026-09-21. Plan prices, quota rules and model prices can change. This article is based on the official pages visible on the review date and BazaarLink's public model API. Please refer to the latest official or BazaarLink announcements afterward.
"Paying a fixed amount every month" and "paying for what you use" are not the same kind of product. A subscription usually buys access and features within a particular chat or coding product; a pay-as-you-go API turns usage such as prompt and completion tokens into fees. To answer "is it worth it," first align the units of measurement for both, then apply the same standard to BazaarLink, rather than just putting the monthly fee next to an attractive quota number.
Break "worth it" into three questions
The first question is what you are buying: a chat interface, a coding tool, model access, or an API to put into your own product? Claude Pro's official documentation explicitly describes it as a Claude chat plan, which does not include Claude Console API usage; API usage must be paid separately. So Claude Pro's $20 cannot be treated directly as $20 of API credit.
The second question is whether your usage is regular. People who use it heavily every week may use up the plan quota of a subscription; people who make only a few requests a month may find a pay-as-you-go API easier to explain. This is only a comparison of cost models and does not assess service quality.
The third question is whether you can accept the quota rules. Official subscription descriptions are usually framed in terms of sessions, weeks, months, or usage within the plan; the API can be estimated directly from token prices. Read the original text of both rule sets. Do not treat "estimated request counts" as a guarantee, and do not treat "dollar usage limits" as cash that can be withdrawn.
Official plan rules: Claude Pro and OpenCode Go
| Plan | Official price / rules visible on the review date | Limits to keep in mind when interpreting |
|---|---|---|
| Claude Pro | US price is $20/month; annual billing has a discounted price. Provides more usage per session than Free, including features such as Claude Code. | Each session is affected by message length, attachments, conversation length, model and features; sessions reset every 5 hours, and there is also a weekly usage limit across models. The API is not included in Pro. |
| Claude Max | Starting at $100/month, with a choice of 5x or 20x Pro usage; the official page still notes that usage limits apply. | This is a usage multiplier for the chat product, not a token balance you can directly use to call the API. |
| OpenCode Go | $5 for the first month, then $10/month. | The official page lists usage caps of $12 per 5 hours, $30 per week and $60 per month. Actual request counts vary by model, and the list and rules may be adjusted. After reaching the cap, if the account has a balance and the corresponding option is enabled, you can switch to pay-as-you-go balance. |
These are the publicly listed plan and quota rules, not a commentary on service quality. Claude's Pro support page also notes that message counts are affected by content length, tool use, model, effort and multi-step tasks; OpenCode Go states its monthly cap in dollars of usage and separately lists estimated request counts for each model. Neither can be summed up as "a fixed number of uses per month."
Official plan pages: Claude pricing, Claude Pro explanation, OpenCode Go rules.
Pay-as-you-go API calculation and the actual prices used in this article
The pay-as-you-go baseline used in this article is the actual model IDs and pricing.prompt and pricing.completion read on 2026-09-21 from the BazaarLink public model API. The raw API values are expressed per token; the table below multiplies them by 1,000,000 and lists them in dollars per 1M tokens. Only the IDs actually used in this estimate are listed, and no keys are hard-coded.
| Actual model ID | prompt (USD per 1M) | completion (USD per 1M) | 1M prompt + 0.25M completion |
|---|---|---|---|
claude-sonnet-5 | 2.00 | 10.00 | $4.50 |
claude-opus-5 | 5.00 | 25.00 | $11.25 |
qwen3.8-max | 2.00 | 6.00 | $3.50 |
minimax-m2.7 | 0.30 | 1.20 | $0.60 |
minimax-m3 | 0.30 | 1.20 | $0.60 |
deepseek-v4-pro | 2.40 | 4.80 | $3.60 |
The formula is simple: monthly fee or usage cost = prompt millions × prompt price + completion millions × completion price. For example, claude-sonnet-5 is 1 × $2 + 0.25 × $10 = $4.50. This estimate does not add caching, images, tools, taxes, or any other fees that are not listed in these two fields.
You can re-check the full list in the model catalog, and confirm integration methods in the API documentation. This compares public token prices and does not turn any account rule we did not check into a conclusion.
Break-even estimate: how many tokens per month to cover the monthly fee
To keep the numbers recalculable, first fix one usage shape: each group contains 1M prompt + 0.25M completion, meaning an input-to-output token ratio of about 4:1. In the table below, the "$10 break-even" is the number of tokens for which pay-as-you-go cost accumulates to OpenCode Go's subsequent $10 monthly fee; the "$20 break-even" applies the same method to Claude Pro's US monthly fee of $20, as a reference point.
The $20 break-even does not mean Claude Pro includes API credit, because the official rules explicitly separate the Pro chat plan from Console API billing. It only gives the "$20 monthly fee" the same yardstick as the pay-as-you-go API.
| Model ID | Cost per group | $10 break-even: prompt / completion (M) | Total tokens | $20 break-even: prompt / completion (M) | Total tokens |
|---|---|---|---|---|---|
claude-sonnet-5 | $4.50 | 2.22 / 0.56 | 2.78M | 4.44 / 1.11 | 5.56M |
claude-opus-5 | $11.25 | 0.89 / 0.22 | 1.11M | 1.78 / 0.44 | 2.22M |
qwen3.8-max | $3.50 | 2.86 / 0.71 | 3.57M | 5.71 / 1.43 | 7.14M |
minimax-m2.7 | $0.60 | 16.67 / 4.17 | 20.83M | 33.33 / 8.33 | 41.67M |
minimax-m3 | $0.60 | 16.67 / 4.17 | 20.83M | 33.33 / 8.33 | 41.67M |
deepseek-v4-pro | $3.60 | 2.78 / 0.69 | 3.47M | 5.56 / 1.39 | 6.94M |
This table answers "when do token costs accumulate to a given monthly fee amount," not "do the two products offer the same features." For a real comparison, you also need to look separately at the subscription's interface, workflow and usage caps, and at the freedom of API integration.
Applying the same standard to subscriptions and BazaarLink
I judge by four identical criteria: whether the monthly fee is wasted at low usage, whether usage can be recalculated with the token formula, whether the available models fit the work, and whether the quota rules are easy to misread.
- Claude Pro / Max: Suitable if you first confirm that you want Claude chat, Claude Code or other plan features. The official rules are described in terms of sessions, weekly usage, and conditions such as model and features; if your goal is the API, the Pro monthly fee does not pay for API usage.
- OpenCode Go: Suitable if you concentrate your work on the coding models and plan workflow officially listed, and accept the dollar usage caps of 5 hours, per week, and per month. $60 is the official monthly usage limit; it does not mean every model allows the same number of requests, nor is it a cash balance.
- BazaarLink pay-as-you-go API: This article uses the same standard of "input and output counted separately, calculated at actual token prices," applied to the model IDs and prices in the public catalog. The advantage is that at low usage you can accumulate from
0directly; the cost is that you must track token composition, model choice and the day's prices yourself, and you cannot treat a single estimate as a permanent quote.
Therefore, you cannot use "OpenCode Go's $60 monthly usage" to claim it is cheaper than the API, nor can you use a single BazaarLink model's price to claim it is more feature-complete than Claude Pro. First confirm the type of work, then substitute your own monthly prompt and completion usage into the formula.
Conclusion: look at actual usage first, then decide whether to prepay
If you only make occasional calls each month, estimating with the pay-as-you-go formula is usually more honest than assuming you will use up a subscription's quota. If you use the same coding workflow heavily every day, and the models and quota rules officially listed happen to match your needs, then evaluate the subscription's monthly fee together with its caps. If you need an API for your product, keep the chat subscription and the API budget as two separate accounts.
This article relies only on public plan rules and public prices on the day. Prices and models change, so please re-check prices before purchasing or going live. When you are ready to start using the API, you can first look at the model catalog and the developer documentation.
Sources checked
- BazaarLink public model API: https://bazaarlink.ai/api/v1/models
- BazaarLink model catalog: https://bazaarlink.ai/models
- BazaarLink developer documentation: https://bazaarlink.ai/docs
- Claude pricing: https://claude.com/pricing
- Claude Pro official explanation: https://support.claude.com/en/articles/8325606-what-is-the-pro-plan
- OpenCode Go official rules: https://opencode.ai/v2/docs/console/go
FAQ
Does the monthly fee for Claude Pro include API usage?
No. The official Pro documentation separates the Claude chat plans from the Claude Console API. If you need the API, you must set it up separately and pay for API usage.
How much usage does OpenCode Go's $10 plan actually include?
The official page lists $5 for the first month, then $10/month, and lists usage caps of $12 per 5 hours, $30 per week and $60 per month. Actual request counts vary by model. These figures are not cash that can be withdrawn.
How do I calculate the monthly cost of the pay-as-you-go API?
Multiply the prompt tokens in millions by the prompt price, then add the completion tokens in millions multiplied by the completion price. The estimates in this article fix the usage at 1M prompt + 0.25M completion so you can recalculate them easily.
Can OpenCode Go's $60 monthly usage be compared directly with the API's $60?
No, they cannot be treated as the same amount of cash. $60 is the officially defined monthly usage limit, and request counts vary by model and by the official estimation method. The API is calculated from public token prices, and the features and plan rules are different.
When should I choose the pay-as-you-go API first?
If your monthly usage is irregular, you only make occasional calls, or you plan to integrate the model into your own product, estimating from actual prompt and completion usage is usually easier to verify. If you need the features of a chat or coding product plan, compare the subscription's features and its official usage rules separately.
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