Best AI models for research and analysis
Synthesis across many sources, reports and data analysis over large corpora.
Criteria models with at least 1,000,000 tokens of context, ranked by the LLM Stats overall index.
- 01GPT-6 AstraOpenAI60.7LLM Stats index
- 02Claude Fable 5.1Anthropic56.8LLM Stats index
- 03Claude Opus 5Anthropic55.4LLM Stats index
| # | Model | LLM Stats index |
|---|---|---|
| 01 | GPT-6 AstraOpenAI | |
| 02 | Claude Fable 5.1Anthropic | |
| 03 | Claude Opus 5Anthropic | |
| 04 | GPT-5.6 SolOpenAI | |
| 05 | GPT-5.6 TerraOpenAI | |
| 06 | Gemini 3.8 FlashGoogle |
How it is calculated
- The indexes (overall, reasoning, coding) are the ones LLM Stats publishes; Codifly does not run these tests.
- Prices are each provider's official standard API prices, without caching or batching.
- The blended price weighs 3 input tokens per output token; cost-benefit divides the overall index by that price.
Which one fits your case?
The top of a ranking is not always the most cost-effective at your volume. Estimate your cost or ask us for a written recommendation.
Frequently asked questions
Which is the best AI model for research & analysis?
GPT-6 Astra (60.7) leads this ranking, followed by Claude Fable 5.1 (56.8) · Claude Opus 5 (55.4). Data reviewed on Sep 8, 2026.
Which model in this ranking has the best price-performance?
Gemini 3.8 Flash: 34.0 LLM Stats index points per dollar, at a blended price of $1.50 per million tokens.
How is this ranking calculated?
models with at least 1,000,000 tokens of context, ranked by the LLM Stats overall index. The indexes (overall, reasoning, coding) are the ones LLM Stats publishes; Codifly does not run these tests. Prices are each provider's official standard API prices, without caching or batching. The blended price weighs 3 input tokens per output token; cost-benefit divides the overall index by that price.
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