Cost guide
Coding agent cost calculator
Coding agent cost calculator estimates the monthly cost for this workload. On ByteCosts assumptions (32,000 input + 6,000 output tokens per call, 8,000 calls/month), the cheapest capable model clears it for about $40.32/month ($0.005 per call). For this workload input tokens dominate, so retrieved-context size and prompt-cache hit rate move the bill most. The headline per-token price is a weak predictor of the invoice: a model that is "cheaper" per million tokens can lose once output volume, retries, and your top users are priced in. Capability matters too - only models that clear the workload's quality bar are ranked, so a tiny model can't win on price alone. Run your own token mix and call volume through the live calculator to get a number you can budget against.
Open the calculator - Model this on your own token mix, volume, and seats →
Cheapest capable models
Lowest monthly cost first, among models that clear the workload's quality bar (Artificial Analysis Coding index ≥ 30, 128K context, tool-calling). Cost is computed at 32,000 input + 6,000 output tokens per call, 8,000 calls/month.
| Model | Provider | Input | Output | Monthly | Per call |
|---|---|---|---|---|---|
| GPT OSS 120B | Vertex | $0.090 | $0.360 | $40.32 | $0.005 |
| DeepSeek V4 Flash | DeepSeek | $0.140 | $0.280 | $49.28 | $0.0062 |
| MiMo-V2-Flash | Xiaomi | $0.140 | $0.280 | $49.28 | $0.0062 |
| DeepSeek V3.2 Exp | Alibaba (China) | $0.287 | $0.431 | $94.16 | $0.0118 |
| Step 3.7 Flash | StepFun | $0.200 | $1.15 | $106 | $0.0133 |
| GPT-5.4 nano | OpenAI | $0.200 | $1.25 | $111 | $0.0139 |
Formula
monthlyCost = callsPerMonth * ((inputTokensPerCall / 1,000,000) * inputPricePerMTok + (outputTokensPerCall / 1,000,000) * outputPricePerMTok), then adjust for caching, retries, batch discounts, gateway fees, and any workload-specific runtime cost.
For coding agent cost calculator, ByteCosts keeps each driver visible so you can change the workload instead of accepting a generic vendor example.
Example scenario
Using the default coding agent workload, 8,000 calls/month at 32,000 input and 6,000 output tokens per call produces a lowest capable estimate of about $40.32/month before caching, retries, gateway fees, taxes, or negotiated discounts.
Assumptions used
The cost figures above are computed from these workload assumptions. Change any of them in the calculator to match your app:
- Input tokens per call: 32K (32,000 tokens).
- Output tokens per call: 6K (6,000 tokens).
- Call volume: 8,000 calls/month (range 200–200,000).
- Minimum context window: 128K.
- Quality gate: Artificial Analysis Coding index ≥ 30.
- Requires tool-calling support.
- Prices are list prices and exclude batch discounts, prompt caching, retries, and gateway fees.
Interpretation guide
- Compare models or plans with the same workload assumptions.
- Stress-test output-heavy, retry-heavy, and power-user scenarios before committing to a price.
- Use the estimate to decide what to measure in production logs.
- Verify provider source links before production billing decisions.
How to cut this cost
The levers that move this workload's bill the most, roughly in order of impact:
- Cache the shared prefix: this workload is input-heavy, so a high cache hit rate on the system prompt and reused context cuts the dominant cost.
- Pick the cheapest capable model: the table above ranks models that clear the quality bar - the top row is the lowest monthly cost.
- Cut retries and tool loops: a single failed step can re-send the whole context and double a request's cost.
- Use the batch API for latency-tolerant volume to take the per-token discount.
- Re-check after price changes: the cheapest capable model shifts as providers update rates - ByteCosts dates every price.
Limitations before production billing decisions
Treat ByteCosts calculations as planning estimates, not final billing totals. Real invoices can differ because token mix, retry rate, cache hit rate, rate limits, taxes, gateway fees, regional pricing, and negotiated discounts change the effective cost.
Verify the provider source before production billing decisions, then compare the estimate with your own logs or invoice once production traffic is live.
Calculator context
These figures use ByteCosts' default assumptions. Your token mix, call volume, seats, and quality bar are different - and they move the bill more than any headline price. Open the live coding agent cost calculator to plug in your own numbers and get a monthly cost you can budget against.
The calculator computes against the same committed, source-backed pricing index behind this page, so the number you get is the number you can defend.
Frequently asked questions
How much does a coding agent cost for a developer or a team?
On ByteCosts assumptions (32K in + 6K out per call, 8,000 calls/month), the cheapest capable model costs about $40.32/month ($0.005 per call). Your real cost depends on token mix, call volume, retries, and caching - run them through the calculator.
Which model is cheapest for this workload?
The cheapest model that clears the workload's quality bar - ByteCosts ranks only models above the workload's Artificial Analysis index, so a tiny model can't win on price alone. The top row of the table is the lowest monthly cost; the ranking shifts as providers change prices.
Does a lower per-token price mean a lower bill?
Not reliably. Output volume, retries, prompt-cache hit rate, and your heaviest users move the bill more than the headline per-token rate. A model that's cheaper per million tokens can still lose once those are priced in - which is why the ranking is by computed monthly cost, not list price.
Coding agent cost calculator. ByteCosts. Updated July 9, 2026. https://bytecosts.com/use-cases/coding-agent-cost-calculator/