AiGanakCheapest AI for research reports, by model and language
Write long research reports: what a typical job costs on every current OpenAI, Anthropic and Google model, in English, Hindi, Tamil and German. Long reports take several passes (plan, draft sections, check) over a lot of source material. Flagship models keep structure and facts together best.
Write long research reports: a typical job is 18,500 tokens per report over 8 model calls. At list prices checked 9 November 2026, the lowest-cost flagship-class model is Gemini 4 Argon in English ($482.43 per 1,000 reports) and Gemini 4 Argon in Hindi ($597.48 per 1,000 reports). Costs shown for English, Hindi, Tamil and German on every current OpenAI, Anthropic and Google model.
The pick, by language
Flagship class is the smallest model class that normally handles this job. The pick is the lowest-cost current model of that class or above.
| Language | Lowest-cost model | Per 1,000 reports | Per month at 40 reports |
|---|---|---|---|
| English | Gemini 4 Argon Google | $482.43 | $19 |
| Hindi | Gemini 4 Argon Google | $597.48 | $24 |
| Tamil | Gemini 4 Argon Google | $752.29 | $30 |
| German | Gemini 4 Argon Google | $594.64 | $24 |
Cost per 1,000 reports
Typical job: 4,000 tokens of instructions, 12,000 read and 2,500 written per report, over 8 model calls, counted in English tokens on the reference model family and converted for each model family and language with the measured token tax (4 November 2026). Standard list prices, no caching, no batch discount.
| Model | English | Hindi | Tamil | German |
|---|---|---|---|---|
| GPT-6 Luna OpenAI · Small | $22.80 | $31.18 | $40.70 | $27.63 |
| Claude Haiku 5.5 Anthropic · Small | $33.46 | $70.31 | $97.16 | $62.00 |
| Gemini 3.5 Flash-Lite Google · Small | $93.52 | $108.66 | $123.50 | $117.51 |
| Gemini 3.8 Flash Google · Mid | $180.91 | $209.14 | $236.84 | $225.65 |
| GPT-6.1 Terra OpenAI · Mid | $228.00 | $311.80 | $406.96 | $276.29 |
| GPT-6.1 Sol OpenAI · Mid | $456.00 | $623.59 | $813.91 | $552.58 |
| Gemini 4 Argon Google · Flagship | $482.43 | $597.48 | $752.29 | $594.64 |
| Gemini 3.1 Pro (preview) Google · Flagship · older or preview | $524.75 | $607.71 | $689.10 | $656.23 |
| Claude Sonnet 5.5 Anthropic · Mid | $669.13 | $1,406.26 | $1,943.13 | $1,240.09 |
| Claude Opus 5.5 Anthropic · Flagship | $1,338.26 | $2,812.52 | $3,886.26 | $2,480.17 |
| GPT-6 Astra OpenAI · Flagship | $2,280.00 | $3,117.97 | $4,069.57 | $2,762.90 |
| Claude Fable 5.1 Anthropic · Flagship | $3,345.65 | $7,031.30 | $9,715.65 | $6,200.43 |
Announced price changes are not included here: Gemini 4 Argon from 1 December 2026; Gemini 3.8 Flash from 1 January 2027. AiGanak Check applies them. The size of a job is an estimate; your own prompts and replies decide your bill. Quality on your task decides whether a cheaper model is usable.
Research reports: questions
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Which AI model is cheapest for research reports?
For a typical job of 4,000 instruction tokens, 12,000 tokens read and 2,500 tokens written per report, over 8 model calls, the lowest-cost flagship-class model at list prices checked 9 November 2026 is Gemini 4 Argon in English at $482.43 per 1,000 reports. Smaller models cost less but may not reach the quality this job needs.
Does research reports cost more in Hindi or Tamil?
Usually yes, because the same text takes more tokens. The lowest-cost flagship-class model is Gemini 4 Argon in Hindi at $597.48 per 1,000 reports and Gemini 4 Argon in Tamil at $752.29 per 1,000 reports, against $482.43 in English. Instructions stay in English in these figures.
How is the cost per report worked out?
Tokens read and written per report are multiplied by each model's list price per million tokens, using the measured token counts of that model family for each language (AiGanak token tax index, 4 November 2026). Caching, batch discounts and retries are not included; AiGanak Check lets you turn them on.
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Your real reports, priced on every model
The tables use a typical job. Your bill depends on your prompts, reply lengths and mix of languages. Send one month of usage and a sample of requests, and we price your actual traffic on every model and show the changes that are safe to make.
Delivered in two working days. If the savings identified come to less than USD 149 over three months, we refund what you paid.
Get an email when a price change affects these costs
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