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Agent Frameworks Brands in OpenAI Model API Answers

Ranks reviewed Agent Frameworks brands by presence in OpenAI's configured model API answers to the fixed public prompt cohort. This does not measure the consumer application.

Coverage: 16 entities
Confidence: 100%
Freshness: current
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Watching publication Jul 27, 2026

LEADERBOARD

Current rankings

Metric: OpenAI recommendation-prompt presence

Find in tableEntity typeMovementConfidenceEvidence NRank rangeColumnsSort rowsAnswer providerBrand signal

16of 16 rows

Agent Frameworks Brands in OpenAI Model API Answers current rankings
Rank	Entity	OpenAI recommendation-prompt presence	Mention coverage	Mention share	Citation share	Engine breadth	OpenAI rec. presence	OpenAI coverage	Confidence	N	Change	Trend	Explain
01	Microsoft Agent Frameworkcompany	50.0%	33.33%	17.14%	35.29%	3	50%	33.33%	100%	8	—	—	Analyze brand Why this rank
02	LangGraph / Deep Agentscompany	25.0%	47.22%	24.29%	26.47%	3	25%	25%	100%	8	—	—	Analyze brand Why this rank
03	CrewAIcompany	25.0%	27.78%	14.29%	0%	3	25%	16.67%	100%	8	—	—	Analyze brand Why this rank
04	OpenAI Agents SDKcompany	25.0%	19.44%	10%	8.82%	3	25%	16.67%	100%	8	—	—	Analyze brand Why this rank
05	LlamaIndexcompany	12.5%	19.44%	10%	0%	3	12.5%	8.33%	100%	8	—	—	Analyze brand Why this rank
06	Pydantic AIcompany	12.5%	16.67%	8.57%	20.59%	3	12.5%	8.33%	100%	8	—	—	Analyze brand Why this rank
07	Vercel AI SDKcompany	12.5%	8.33%	4.29%	2.94%	3	12.5%	8.33%	100%	8	—	—	Analyze brand Why this rank
08	Haystackcompany	12.5%	8.33%	4.29%	0%	3	12.5%	8.33%	100%	8	—	—	Analyze brand Why this rank
09	Mastracompany	0.0%	5.56%	2.86%	0%	2	0%	0%	100%	8	—	—	Analyze brand Why this rank
10	Google Agent Development Kitcompany	0.0%	2.78%	1.43%	2.94%	1	0%	0%	100%	8	—	—	Analyze brand Why this rank
11	Claude Agent SDKcompany	0.0%	2.78%	1.43%	0%	1	0%	0%	100%	8	—	—	Analyze brand Why this rank
12	Strands Agentscompany	0.0%	2.78%	1.43%	2.94%	1	0%	0%	100%	8	—	—	Analyze brand Why this rank
13	Agnocompany	0.0%	0%	0%	0%	0	0%	0%	100%	8	—	—	Analyze brand Why this rank
14	BeeAI Frameworkcompany	0.0%	0%	0%	0%	0	0%	0%	100%	8	—	—	Analyze brand Why this rank
15	DSPycompany	0.0%	0%	0%	0%	0	0%	0%	100%	8	—	—	Analyze brand Why this rank
16	Hugging Face smolagentscompany	0.0%	0%	0%	0%	0	0%	0%	100%	8	—	—	Analyze brand Why this rank

Agent Frameworks Brands in OpenAI Model API Answers current rankings
Rank	Entity	OpenAI recommendation-prompt presence	Mention coverage	Mention share	Citation share	Engine breadth	OpenAI rec. presence	OpenAI coverage	Confidence	N	Change	Trend	Explain
01	Microsoft Agent Frameworkcompany	50.0%	33.33%	17.14%	35.29%	3	50%	33.33%	100%	8	—	—	Analyze brand Why this rank
02	LangGraph / Deep Agentscompany	25.0%	47.22%	24.29%	26.47%	3	25%	25%	100%	8	—	—	Analyze brand Why this rank
03	CrewAIcompany	25.0%	27.78%	14.29%	0%	3	25%	16.67%	100%	8	—	—	Analyze brand Why this rank
04	OpenAI Agents SDKcompany	25.0%	19.44%	10%	8.82%	3	25%	16.67%	100%	8	—	—	Analyze brand Why this rank
05	LlamaIndexcompany	12.5%	19.44%	10%	0%	3	12.5%	8.33%	100%	8	—	—	Analyze brand Why this rank
06	Pydantic AIcompany	12.5%	16.67%	8.57%	20.59%	3	12.5%	8.33%	100%	8	—	—	Analyze brand Why this rank
07	Vercel AI SDKcompany	12.5%	8.33%	4.29%	2.94%	3	12.5%	8.33%	100%	8	—	—	Analyze brand Why this rank
08	Haystackcompany	12.5%	8.33%	4.29%	0%	3	12.5%	8.33%	100%	8	—	—	Analyze brand Why this rank
09	Mastracompany	0.0%	5.56%	2.86%	0%	2	0%	0%	100%	8	—	—	Analyze brand Why this rank
10	Google Agent Development Kitcompany	0.0%	2.78%	1.43%	2.94%	1	0%	0%	100%	8	—	—	Analyze brand Why this rank
11	Claude Agent SDKcompany	0.0%	2.78%	1.43%	0%	1	0%	0%	100%	8	—	—	Analyze brand Why this rank
12	Strands Agentscompany	0.0%	2.78%	1.43%	2.94%	1	0%	0%	100%	8	—	—	Analyze brand Why this rank
13	Agnocompany	0.0%	0%	0%	0%	0	0%	0%	100%	8	—	—	Analyze brand Why this rank
14	BeeAI Frameworkcompany	0.0%	0%	0%	0%	0	0%	0%	100%	8	—	—	Analyze brand Why this rank
15	DSPycompany	0.0%	0%	0%	0%	0	0%	0%	100%	8	—	—	Analyze brand Why this rank
16	Hugging Face smolagentscompany	0.0%	0%	0%	0%	0	0%	0%	100%	8	—	—	Analyze brand Why this rank

Primary brandPrompt intentAnswer enginePrompt contains

Run live test

Answer presence47.2%17/36 filtered answers mention or cite LangGraph / Deep Agents

Selected-set share53.1%Share of answer-presences among the compared brands, not market share

Owned citation answers99 answer-level URL signals on reviewed owned domains

Engine breadth3/3Engines with at least one observed presence

Filtered competitive answer-presence comparison
Brand	Presence	Vs. primary	Selected share	Mentions	Cited answers	Owned URL signals	Engine breadth
LangGraph / Deep Agentslangchain.com	47.2%17/36	BASE	53.1%	36	9	9	3/3
OpenAI Agents SDKopenai.com	19.4%7/36	-27.8 pp	21.9%	7	2	3	3/3
LlamaIndexllamaindex.ai	19.4%7/36	-27.8 pp	21.9%	24	0	0	3/3
Claude Agent SDKanthropic.com	2.8%1/36	-44.4 pp	3.1%	1	0	0	1/3

ANSWER-LEVEL OBSERVATIONS

Prompt × engine matrix

12 prompts · 36 immutable answer hashes · empty cells mean no compared brand was detected.

Brand presence by public prompt and answer engine
Public prompt	OpenAIopenai/gpt-4o-mini	Anthropicanthropic/claude-haiku-4-5	Geminigoogle/gemini-2.5-flash
01 What are the best open-source frameworks for building reliable AI agents in a production application?recommendation	LangGraph / Deep AgentsLlamaIndexOpenAI Agents SDK 6 source URLs`41971e85`	LangGraph / Deep AgentsLlamaIndexOpenAI Agents SDK 5 source URLs`718379e1`	LangGraph / Deep Agents · C1OpenAI Agents SDK 6 source URLs`56cc6b52`
02 Recommend a Python-first agent framework with typed dependencies, structured outputs, tool validation, and testability.recommendation	No selected brand 5 source URLs`e47f4bfd`	LangGraph / Deep AgentsLlamaIndexClaude Agent SDK 6 source URLs`42537bd5`	No selected brand 7 source URLs`e32ac3c3`
03 Which TypeScript toolkit is best for streaming agent interfaces, tool calling, structured data, and multiple model providers?recommendation	OpenAI Agents SDK · C2 4 source URLs`ace86461`	LangGraph / Deep Agents · C1LlamaIndex 6 source URLs`88463431`	LangGraph / Deep Agents · C1LlamaIndex 6 source URLs`49bfb393`
04 Recommend a framework for role-based multi-agent teams, explicit handoffs, delegation, and human approval steps.recommendation	No selected brand 6 source URLs`6770ec4f`	LangGraph / Deep Agents 8 source URLs`05ae184b`	No selected brand 8 source URLs`f247d333`
05 What is the best framework for durable stateful agent graphs with checkpointing, retries, memory, and human-in-the-loop control?recommendation	LangGraph / Deep Agents 5 source URLs`44f53c83`	LangGraph / Deep Agents 7 source URLs`97b82c05`	LangGraph / Deep AgentsOpenAI Agents SDK 7 source URLs`ce14c8ab`
06 Which enterprise agent framework is strongest for .NET or Java teams that need plugins, governance, telemetry, and orchestration?recommendation	No selected brand 3 source URLs`3b9c0292`	No selected brand 7 source URLs`7b94c93b`	No selected brand 7 source URLs`567e3926`
07 Recommend a cloud-native agent development framework with managed deployment, identity, security controls, and model flexibility.recommendation	No selected brand 6 source URLs`2696686b`	No selected brand 5 source URLs`9575b6aa`	No selected brand 8 source URLs`bbda1af4`
08 Which agent framework is best for retrieval-heavy applications that use documents, data connectors, indexes, and citations?recommendation	No selected brand 4 source URLs`b69e6e1f`	LangGraph / Deep Agents · C1LlamaIndex 5 source URLs`f146a2c7`	LangGraph / Deep AgentsLlamaIndex 4 source URLs`774a05c8`
09 How should a team compare AI agent frameworks for abstraction overhead, model portability, lock-in, and debugging complexity?commercial	No selected brand 7 source URLs`44032dc1`	LangGraph / Deep Agents · C1OpenAI Agents SDK 6 source URLs`29dfbcd0`	LangGraph / Deep Agents · C1 6 source URLs`ed9340c2`
10 Which reliability criteria matter when choosing an agent framework, including state, retries, tracing, and deterministic tests?commercial	No selected brand 8 source URLs`b55addca`	OpenAI Agents SDK · C1 9 source URLs`fc970dce`	No selected brand 0 source URLs`ec1a0512`
11 When should an engineering team adopt an agent framework instead of building a tool-calling loop directly on a model API?commercial	LangGraph / Deep Agents · C1 8 source URLs`de64cdd1`	LangGraph / Deep Agents · C1 4 source URLs`40a4a51e`	LangGraph / Deep Agents · C1 4 source URLs`d2ae1873`
12 How should a company evaluate maintainer commitment, licensing, release stability, and migration risk in an agent framework?commercial	No selected brand 5 source URLs`a0f5d33d`	No selected brand 4 source URLs`4c53cdf6`	No selected brand 0 source URLs`efabfbc9`

STRUCTURED CITATION LEDGER

Sources shaping this filtered view

Hostnames are derived from validated public HTTP(S) URLs, not provider-supplied domain labels.

Validated citation sources in filtered answers
Source hostname	Cited answers	Distinct URLs	Engine breadth	Best position	Evidence
youtube.com	11	10	3	#1	Open source ↗
reddit.com	10	12	3	#1	Open source ↗
learn.microsoft.com	8	6	3	#1	Open source ↗
langchain.com	8	5	3	#1	Open source ↗
medium.com	7	7	3	#2	Open source ↗
github.com	7	6	3	#4	Open source ↗
pydantic.dev	3	6	2	#1	Open source ↗
arxiv.org	3	3	2	#2	Open source ↗
linkedin.com	3	3	3	#4	Open source ↗
braintrust.dev	3	2	2	#3	Open source ↗
langfuse.com	3	1	2	#3	Open source ↗
cloudsecurityalliance.org	3	1	3	#4	Open source ↗
developers.openai.com	2	2	2	#1	Open source ↗
galileo.ai	2	2	1	#1	Open source ↗
machinelearningmastery.com	2	2	2	#1	Open source ↗
rasa.com	2	2	2	#1	Open source ↗
arize.com	2	2	2	#2	Open source ↗
zenml.io	2	2	2	#2	Open source ↗
developersdigest.tech	2	2	2	#3	Open source ↗
aembit.io	2	1	2	#1	Open source ↗

PUBLIC-BENCHMARK PRIVACY BOUNDARY

This report contains only code-reviewed public prompts, deterministic brand counts, answer hashes, and validated structured citation URLs. Full model answers are neither stored nor published here. No customer, organization, or private tracked-prompt data is included.

ai-agent-frameworks-2026-07-27 / 4-ai-agent-frameworks-2026-07-27-models-64232fd32583

Agent Frameworks Brands in OpenAI Model API Answers

Current rankings

Brand vs. market

Prompt × engine matrix

Sources shaping this filtered view

Brand vs. market

Prompt × engine matrix

Sources shaping this filtered view