API capability - Reasoning
AI models with reasoning
123 of the 167 models in the registry have reasoning, according to each provider's own docs. The cheapest by output price is Qwen3.7-Flash from Alibaba Cloud (Qwen) at $0.13 per 1M output tokens. The largest context window among them is 1.05M tokens, on GPT-6 Luna.
Capabilities checked . Sources
- Models with Yes
- 123 of 167
- Lowest output / 1M
- $0.13
- Largest context
- 1.05M
- Not stated
- 26
Every model with reasoning, cheapest first
Prices in USD per 1M tokens at the standard rate, sorted by output price. 18 models are documented without it, and for 26 models the provider's docs do not say (Not stated).
FAQ
What is the cheapest model with reasoning?
Qwen3.7-Flash from Alibaba Cloud (Qwen) is the cheapest model with reasoning in the registry as of October 18, 2026, at $0.03 per 1M input tokens and $0.13 per 1M output tokens on the provider's own API.
Which model with reasoning has the largest context window?
GPT-6 Luna from OpenAI has the largest context window among models with reasoning: 1.05M tokens, at $0.50 per 1M output tokens.
How many AI models have reasoning?
123 of the 167 models in the registry have reasoning. 18 models do not, and for 26 models the provider's docs do not say either way.
What counts as reasoning?
The provider documents a thinking mode for the model: it can reason before it answers, either always on or switched on per request. Each Yes on this page links to the provider's own documentation page that states it.
Sources
Every Yes links to the provider doc page that states it, checked on . Prices and context windows come from each model's pricing page; open a model for its rate card and pricing sources.
Documentation pages read (70)
- https://www.alibabacloud.com/help/en/model-studio/deep-thinking
- https://mimo.mi.com/docs/en-US/api/chat/openai-api
- https://platform.stepfun.ai/docs/en/guides/models/step-3.5-flash
- https://developers.openai.com/api/docs/models/gpt-5-nano
- https://docs.z.ai/guides/llm/glm-4.7
- https://ai.google.dev/gemini-api/docs/models/gemini-2.5-flash-lite
- https://docs.byteplus.com/en/docs/ModelArk/model-list
- https://platform.claude.com/docs/en/build-with-claude/thinking
- https://developers.openai.com/api/docs/models/gpt-6-luna
- https://docs.z.ai/guides/vlm/glm-5.3-flash
- https://www.tencentcloud.com/document/product/1300/78934
- https://docs.mistral.ai/studio/conversations/reasoning
- https://docs.inceptionlabs.ai/capabilities/reasoning-efforts
- https://docs.z.ai/guides/vlm/glm-4.6v
- https://docs.z.ai/guides/llm/glm-4.5
- https://platform.stepfun.ai/docs/en/guides/models/step-3.7-flash
- https://developers.openai.com/api/docs/models/gpt-5.6-luna
- https://api-docs.deepseek.com/quick_start/pricing
- https://platform.minimax.io/docs/api-reference/text-anthropic-api
- https://developers.openai.com/api/docs/models/gpt-5.4-nano
- https://ai.google.dev/gemini-api/docs/models/gemini-3.1-flash-lite
- https://www.alibabacloud.com/help/en/model-studio/vision
- https://developers.openai.com/api/docs/models/gpt-5-mini
- https://www.alibabacloud.com/help/en/model-studio/text-generation-model
- https://docs.x.ai/developers/models/grok-build-0.1
- https://docs.z.ai/guides/llm/glm-4.6
- https://docs.aws.amazon.com/bedrock/latest/userguide/model-card-amazon-nova-2-lite.html
- https://ai.google.dev/gemini-api/docs/models/gemini-2.5-flash
- https://ai.google.dev/gemini-api/docs/models/gemini-3.5-flash-lite
- https://docs.x.ai/developers/models/grok-4.20-0309-reasoning
- https://docs.x.ai/developers/models/grok-4.20-multi-agent-0309
- https://docs.x.ai/developers/models/grok-4.3
- https://platform.stepfun.ai/docs/en/guides/models/step-5-preview
- https://ai.google.dev/gemini-api/docs/models/gemini-3-flash-preview
- https://docs.z.ai/guides/llm/glm-5
- https://intl.cloud.baidu.com/en/doc/qianfan/s/7m95lyy43-intl-en
- https://ai.google.dev/gemini-api/docs/models/gemini-3.6-flash
- https://ai.google.dev/gemini-api/docs/models/gemini-3.8-flash
- https://platform.kimi.ai/docs/guide/kimi-k2-6-quickstart
- https://platform.kimi.ai/docs/guide/kimi-k2-7-code-quickstart
- https://developers.openai.com/api/docs/models/o3-mini
- https://developers.openai.com/api/docs/models/o4-mini
- https://docs.z.ai/guides/llm/glm-5.1
- https://docs.z.ai/guides/llm/glm-5.2
- https://docs.z.ai/guides/llm/glm-5.3
- https://developers.openai.com/api/docs/models/gpt-5.4-mini
- https://ai.google.dev/gemini-api/docs/robotics-overview
- https://docs.x.ai/developers/model-capabilities/text/reasoning
- https://developers.openai.com/api/docs/models/o3
- https://ai.google.dev/gemini-api/docs/models/gemini-2.5-pro
- https://developers.openai.com/api/docs/models/gpt-5
- https://developers.openai.com/api/docs/models/gpt-5.1
- https://ai.google.dev/gemini-api/docs/models/gemini-4-argon
- https://developers.openai.com/api/docs/models/gpt-6-sol
- https://developers.openai.com/api/docs/models/gpt-6.1-sol
- https://ai.google.dev/gemini-api/docs/models/gemini-3.1-pro-preview
- https://developers.openai.com/api/docs/models/gpt-5.6-terra
- https://developers.openai.com/api/docs/models/gpt-5.2
- https://developers.openai.com/api/docs/models/gpt-5.3-codex
- https://developers.openai.com/api/docs/models/gpt-5.4
- https://platform.kimi.ai/docs/guide/kimi-k3-quickstart
- https://developers.openai.com/api/docs/models/gpt-5.6-sol
- https://developers.openai.com/api/docs/models/gpt-5.5
- https://developers.openai.com/api/docs/models/gpt-6-astra
- https://developers.openai.com/api/docs/models/o1
- https://developers.openai.com/api/docs/models/gpt-5.6-cyber
- https://developers.openai.com/api/docs/models/o3-pro
- https://developers.openai.com/api/docs/models/gpt-5-pro
- https://developers.openai.com/api/docs/models/gpt-5.5-pro
- https://developers.openai.com/api/docs/models/o1-pro
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