# GPT (frontier tier)

> OpenAI's flagship reasoning family. Pricing and exact context vary by released variant — check OpenAI's pricing page for current numbers.

_The Frontier Model Matrix · /models/gpt-frontier · [JSON](/api/models/gpt-frontier) · [all The Frontier Model Matrix](/models)_

- **name:** GPT (frontier tier)
- **vendor:** OpenAI
- **model_id:** see provider
- **context_window:** see provider
- **max_output:** see provider
- **input_per_mtok:** see provider
- **output_per_mtok:** see provider
- **strengths:** OpenAI's flagship reasoning family. Pricing and exact context vary by released variant — check OpenAI's pricing page for current numbers.
- **provider:** OpenAI
- **family:** GPT
- **release_date:** — (verify-against-primary-at-build)
- **last_updated:** 2026-06-15
- **open_weights:** — (verify-against-primary-at-build)
- **license:** proprietary (source: https://openai.com/policies/services-agreement/)
- **params_total:** — (verify-against-primary-at-build)
- **params_active:** — (verify-against-primary-at-build)
- **tool_call:** true (source: https://developers.openai.com/api/docs/guides/function-calling)
- **reasoning:** — (verify-against-primary-at-build)
- **structured_output:** — (verify-against-primary-at-build)
- **attachment:** — (verify-against-primary-at-build)
- **temperature:** — (verify-against-primary-at-build)
- **knowledge_cutoff:** — (verify-against-primary-at-build)
- **context_advertised:** see provider
- **context_effective:** — (verify-against-primary-at-build)
- **price_input:** see provider
- **price_output:** see provider
- **price_cache_read:** — (verify-against-primary-at-build)
- **price_cache_write:** — (verify-against-primary-at-build)
- **cost_per_full_window:** — (verify-against-primary-at-build)
- **cost_per_agent_task:** — (verify-against-primary-at-build)
- **modalities:** — (verify-against-primary-at-build)
- **gpqa_diamond:** — (verify-against-primary-at-build)
- **swe_bench_verified:** — (verify-against-primary-at-build)
- **terminal_bench:** — (verify-against-primary-at-build)
- **tau2_bench:** — (verify-against-primary-at-build)
- **bfcl_tool_use:** — (verify-against-primary-at-build)
- **aa_index:** — (verify-against-primary-at-build)
- **lmarena_elo:** — (verify-against-primary-at-build)
- **tokens_per_sec:** — (verify-against-primary-at-build)
- **ttft:** — (verify-against-primary-at-build)
- **hallucination_rate:** — (verify-against-primary-at-build)
- **agent_readiness_score:** — (verify-against-primary-at-build)
- **score_confidence:** partial
- **source_url:** https://developers.openai.com/api/docs/guides/function-calling
- **source_type:** provider_card
- **last_verified:** 2026-06-15