AI Credit & Cost Calculator — Compare 20+ Models | LazyTools

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AI Credit & Cost Calculator

Compare API costs for 20+ AI models from OpenAI, Anthropic, Google, xAI, DeepSeek, Mistral and Meta. Enter your usage pattern (requests per day, input/output tokens), choose a use-case preset, and see ranked monthly costs with automatic best-value recommendation. June 2026 prices from official API documentation.

AI Credit & Cost Calculator20+ Models • 7 Providers • June 2026 Prices
Use-Case Presets
Set your usage and click Compare All Models
Calculators20+ Models7 Providers6 PresetsAuto-RecommendJune 2026

How to Use the AI Credit & Cost Calculator

Select a use-case preset or enter custom usage: requests per day, average input tokens per request and average output tokens per request. Furthermore, click Compare All Models to see a ranked cost comparison across 20+ models from 7 providers. The recommendation engine identifies the best-value model for your specific usage pattern. Additionally, copy the full comparison table for team discussions or procurement decisions.

  1. Select a presetChatbot, Coding Agent, RAG, Content Generation, Support Bot or Summariser.
  2. Adjust usageSet requests/day, input tokens/request and output tokens/request.
  3. Compare modelsView 20+ models sorted by monthly cost with quality ratings.
  4. Read recommendationSee the best-value, cheapest and premium options for your usage.
  5. Copy resultsCopy the ranked list with monthly and annual costs.

Competitor Gap Analysis

Most AI pricing calculators show a single model's cost or list static price tables. Furthermore, no single free tool combines 20+ models from 7 providers with use-case presets, automatic recommendation, quality ratings and copy-to-clipboard comparison.

FeatureMost competitorsLazyTools
Models compared5–1020+ models
Providers covered1–37 (OpenAI, Anthropic, Google, xAI, DeepSeek, Mistral, Meta)
Use-case presetsRare6 presets (chatbot, coding, RAG, content, support, summariser)
Automatic recommendationNo competitorBest-value, cheapest and premium picks
Quality ratingNo competitor1–10 scale per model
Daily / monthly / annualSomeAll three with per-model breakdown
Copy comparisonNo competitorFull ranked text report

How AI API Pricing Works

AI APIs charge per token consumed. One token equals approximately 0.75 English words, or roughly 4 characters. Furthermore, input tokens (your prompt, system message and context) and output tokens (the model's response) are priced separately. Output tokens are typically 3 to 8 times more expensive than input tokens because generation requires more compute.

AI API Cost Formula: Cost per request = (input_tokens / 1,000,000 x input_price) + (output_tokens / 1,000,000 x output_price) Example: Claude Sonnet 4.6, 1000 input + 500 output tokens Input: 1,000 / 1,000,000 x $3.00 = $0.003 Output: 500 / 1,000,000 x $15.00 = $0.0075 Total per request: $0.0105 At 500 requests/day, 30 days/month: Monthly cost = $0.0105 x 500 x 30 = $157.50

Sources: OpenAI API Pricing · Anthropic Claude Pricing · Google AI Pricing

AI Model Pricing Comparison (June 2026)

The table below lists current per-million-token prices for the most widely used AI models. Furthermore, prices have dropped approximately 80 percent between early 2025 and mid-2026. The cost gap between frontier models (GPT-5.5, Opus 4.6) and budget models (DeepSeek V4, Gemini Flash-Lite) spans a 50x range.

ModelProviderInput $/MOutput $/MTier
GPT-5.5OpenAI$5.00$30.00Frontier
Claude Opus 4.6Anthropic$5.00$25.00Frontier
Claude Sonnet 4.6Anthropic$3.00$15.00Flagship
Gemini 3.1 ProGoogle$2.00$12.00Pro
GPT-5.2OpenAI$1.75$14.00Flagship
Claude Haiku 4.5Anthropic$1.00$5.00Fast
GPT-5 MiniOpenAI$0.25$2.00Budget
DeepSeek V3DeepSeek$0.27$1.10Budget
DeepSeek V4 FlashDeepSeek$0.14$0.28Ultra-budget
GPT-5 NanoOpenAI$0.05$0.40Ultra-budget

Choosing the Right Model for Your Use Case

Different tasks require different quality levels. Furthermore, using a frontier model for simple classification wastes 90 percent of spend. The optimal strategy is tiered routing: send simple tasks to cheap models and complex tasks to premium models. Additionally, this approach can reduce total API costs by 60 to 80 percent without measurably affecting output quality.

Use caseRecommended modelsWhy
Customer support chatbotHaiku 4.5, GPT-5 MiniHigh volume, short responses, cost-sensitive
Coding agentSonnet 4.6, GPT-5.2 CodexQuality critical for code correctness
RAG / searchGemini 2.5 Flash, Haiku 4.5Large context windows, fast response
Content generationSonnet 4.6, GPT-5.2Nuanced writing, brand voice
Document summarisationGemini 3.5 Flash, GPT-5 MiniLong input, short output
Complex reasoningOpus 4.6, GPT-5.5, o4-miniMaximum accuracy required
The most expensive model is not always the best for your task. Furthermore, benchmark studies show that Sonnet 4.6 matches or exceeds GPT-5.5 on coding tasks at 60 percent of the cost. Matching the model to the task complexity is the single most effective cost optimisation strategy.

Cost Reduction Strategies

Prompt Caching

Prompt caching stores repeated system prompts so you pay reduced rates on subsequent calls. Furthermore, OpenAI offers 50 to 90 percent discounts on cached input. Anthropic offers 90 percent discounts on cache reads. This is most effective for applications with long, static system prompts.

Batch Processing

Anthropic offers 50 percent discount on batch API calls. Furthermore, batch processing is ideal for non-real-time tasks like content moderation, data extraction and translation. OpenAI also offers batch endpoints at reduced rates.

Tiered Routing

Route simple queries to cheap models and complex queries to premium models. Furthermore, a classifier model (GPT-5 Nano at $0.05/M input) can categorise incoming requests by complexity. Simple queries go to Haiku ($1/$5). Complex queries go to Sonnet ($3/$15). This reduces average cost by 60 to 80 percent.

AI Pricing Trends: 2023 to 2026

AI API prices have dropped approximately 95 percent since 2023 according to ARK Invest research. Furthermore, GPT-4 launched at $30/$60 per million tokens in 2023. The equivalent capability in 2026 costs $1.75/$14 via GPT-5.2. Additionally, competition from DeepSeek, Mistral and Google has accelerated price reductions across all providers.

Prices continue to fall 30 to 50 percent per year. Furthermore, each new model generation typically matches the previous generation's quality at a fraction of the cost. Enterprise buyers should avoid long-term volume commitments at current prices because rates will likely be significantly lower within 12 months.

Sources: ARK Invest: AI Cost Deflation Research · Prompt Engineer Collective: LLM API Pricing 2026 · DevTk.AI: 40+ Models Compared

Other AI Tools You Might Need

Beyond cost calculation, teams building AI products need several supporting tools. Furthermore, here are AI-related tool categories that complement this calculator.

Tool typePurposeStatus on LazyTools
AI Token CounterCount exact tokens for a text (GPT/Claude tokenizers differ)Planned
AI Prompt Template BuilderCreate, version and test system promptsPlanned
AI Water Footprint CalculatorEstimate environmental cost of AI inferenceAvailable
AI ROI CalculatorCompare AI automation savings vs API costPlanned
AI Model Benchmark ComparatorCompare MMLU, HumanEval, coding scoresPlanned
AI Context Window PlannerPlan RAG chunking to fit model context limitsPlanned

References

1. OpenAI API Pricing, June 2026.
2. Anthropic Claude API Pricing, June 2026.
3. Google AI / Gemini Pricing, June 2026.
4. Prompt Engineer Collective: LLM API Pricing 2026.
5. DevTk.AI: AI API Pricing Comparison May 2026.
6. IntuitionLabs: AI API Pricing Comparison 2026.
7. ARK Invest: AI Cost Deflation.

Understanding Token Counts

One token equals approximately 0.75 English words, or roughly 4 characters. Furthermore, a 1,000-word document contains approximately 1,333 tokens. Code typically tokenises at a higher ratio than prose because variable names and syntax characters each consume separate tokens. Additionally, different providers use different tokenisers. OpenAI uses tiktoken, Anthropic uses a custom BPE tokeniser, and Google uses SentencePiece.

System prompts consume input tokens on every request. Furthermore, a 500-word system prompt adds approximately 667 tokens to every call. At 1,000 requests per day on Sonnet 4.6, that system prompt alone costs $2.00 per day. Additionally, prompt caching can reduce this cost by 90 percent on repeated identical prefixes.

Frequently Asked Questions

AI APIs charge per token consumed. Furthermore, input tokens (your prompt) and output tokens (the response) are priced separately. One token equals approximately 0.75 English words.
DeepSeek V4 Flash at $0.14/$0.28 per million tokens is the cheapest capable model. Furthermore, Gemini 2.5 Flash-Lite at $0.10/$0.40 and GPT-5 Nano at $0.05/$0.40 are also extremely affordable.
Claude Sonnet 4.6 and GPT-5.2 Codex lead coding benchmarks. Furthermore, Claude Opus 4.6 provides the highest quality for complex architecture tasks. DeepSeek V4 Flash offers good coding at a fraction of the cost.
GPT-5.2 costs $1.75 per million input tokens and $14.00 per million output tokens. Furthermore, GPT-5 Mini at $0.25/$2.00 is dramatically cheaper for simpler tasks.
Sonnet 4.6 costs $3.00/$15.00, Opus 4.6 costs $5.00/$25.00, and Haiku 4.5 costs $1.00/$5.00 per million tokens. Furthermore, batch processing offers 50% discounts.
Prompt caching stores repeated system prompts so you pay reduced rates on subsequent calls. Furthermore, OpenAI offers 50 to 90 percent discounts on cached input tokens depending on the model.
Approximately 1,333 tokens for English text. Furthermore, code typically tokenises at a higher ratio. The rule of thumb is 1 token equals 0.75 words, or 4 characters.
Most enterprises use tiered routing. Furthermore, simple queries go to cheap models (Haiku, GPT-5 Mini), while complex tasks go to premium models (Opus, GPT-5.5). This can reduce costs by 60 to 80 percent.
Yes. Llama 4 Scout via hosted APIs costs $0.18/$0.59. Furthermore, that is 16x cheaper on input than Claude Sonnet 4.6. The trade-off is lower quality on the hardest reasoning tasks.
No. All calculations run in your browser. Furthermore, no usage data is transmitted to any server.

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