openai / Chat
GPT-5 Nano Deep
openai/gpt-5-nano-highGPT-5 Nano with high thinking — deeper reasoning
Catalog status
Enabled
Research checked
2026-10-06
Price / performance
What it costs to get this result
Humanity's Last Exam · Source-reported results, not a composite ranking. Prices use the average of TokenBazaar input and output rates per million tokens; actual spend depends on usage. Test configurations differ.
Blended price / 1M tokens · log scale
Compare sourced models on this benchmark
Benchmark results
Results are source-attributed, not TokenBazaar measurements. Different tests and thinking variants are not interchangeable.
6 of 6 results
Artificial Analysis Intelligence Index (estimated)
Reasoning · Third-party report
Test conditions and source
Live source labels GPT-5 nano (high), Intelligence Updated, score 13, explicitly estimated. Index points are not percentages; index editions are not interchangeable. Not a TokenBazaar measurement.
Tested model: openai/gpt-5-nano-high
Artificial Analysis · GPT-5 nano (high) · Checked 2026-10-06
Output generation speed
Speed · Third-party report
Test conditions and source
Live source summary for GPT-5 nano (high). Deprecated model; source says it continues only default 10k input-token workload performance benchmarking. Provider/hardware-dependent, not a TokenBazaar latency guarantee.
Tested model: openai/gpt-5-nano-high
Artificial Analysis · GPT-5 nano (high) · Checked 2026-10-06
Humanity's Last Exam
Reasoning · Third-party report
Test conditions and source
Published configuration: reasoning_effort: high. Source-reported result, not the catalog default unless the effort matches. Humanity's Last Exam | 21% | 9% |
Tested model: openai/gpt-5-nano-high
Artificial Analysis - GPT-5 mini vs GPT-5 nano comparison · Checked 2026-10-06
CritPt
Science · Third-party report
Test conditions and source
Published configuration: reasoning_effort: high. Source-reported result, not the catalog default unless the effort matches. CritPt | 0% | 0% |
Tested model: openai/gpt-5-nano-high
Artificial Analysis - GPT-5 mini vs GPT-5 nano comparison · Checked 2026-10-06
AA-Omniscience
Knowledge · Third-party report
Test conditions and source
Published configuration: reasoning_effort: high. Source-reported result, not the catalog default unless the effort matches. AA-Omniscience | −17 | −29 |
Tested model: openai/gpt-5-nano-high
Artificial Analysis - GPT-5 mini vs GPT-5 nano comparison · Checked 2026-10-06
AA-LCR v1.1
Long-Context-Reasoning · Third-party report
Test conditions and source
Published configuration: reasoning_effort: high. Source-reported result, not the catalog default unless the effort matches. AA-LCR v1.1 | 72% | 45% |
Tested model: openai/gpt-5-nano-high
Artificial Analysis - GPT-5 mini vs GPT-5 nano comparison · Checked 2026-10-06
Model specifications
Context window
400K
Published provider limit
Maximum output
128K
Published provider limit
Knowledge cutoff
May 31, 2024
Upstream model
Input and output modalities
Provider-reported formats; API compatibility is detailed below.
Input
Output
- Exact model ID
- openai/gpt-5-nano-high
- Model type
- Chat
- Context window
- 400,000 tokens
- Maximum output
- 128,000 tokens
- Knowledge cutoff
- May 31, 2024
A context window is the total conversation budget, not a separate maximum input allowance; generated output and reasoning can use that budget. Published provider limits are not independently tested TokenBazaar request limits.
Versions and thinking levels
Choose from 4 enabled versions. The exact ID determines the version and its price; benchmark scores do not carry over between variants.
Features and tool support
TokenBazaar’s exposed interface, not every feature advertised by the provider. “Available” describes the implemented interface, not a successful test of every input or tool.
Reasoning configuration
The catalog version determines the requested reasoning effort.
Selected effort: high. Reasoning level is not a measured intelligence or speed score.
Coding and agent workflows
Text/code generation and customer-managed tool loops.
Coding benchmark results do not establish a hosted terminal, sandbox, autonomous browser or guaranteed task success.
Streaming answers
AvailableIncremental text through TokenBazaar’s chat endpoint; Claude also has native Messages access.
Customer-defined function tools
LimitedOnly customer-defined function tools are forwarded. Model/protocol compatibility applies; your application authorizes and executes every tool.
Forced or named tool selection
LimitedThe chat route accepts auto, none and required. A named-tool choice is not forwarded; exact model compatibility is not independently tested.
Images and PDFs
LimitedThe chat bridge accepts image/PDF content. Provider input modalities are listed separately; file size, content and model limits still apply.
Hosted web search / browsing
Not exposedNo provider-hosted web search or web-fetch tool is exposed. Customer-owned search can be implemented as an authorized function tool.
Hosted code execution / computer use
Not exposedNo built-in execution environment or computer-control tool is provided. Code generation is not code execution.
Hosted file search / persistent assistants
Not exposedNo hosted file-search index, Assistants endpoint or persistent provider agent is exposed.
Batch / fine-tuning / cached-price discounts
Not exposedNo public batch or fine-tuning endpoint, or separate cached-token discount, is offered here.
Sources and verification
Provider specifications describe the upstream model, not a guarantee of every feature through TokenBazaar. Prices come from the enabled catalog; benchmark results belong to the exact tested model.
- Provider model specifications
Vendor-reported
Last checked - Artificial Analysis · GPT-5 nano (high)
Third-party report
Last checked - Artificial Analysis - GPT-5 mini vs GPT-5 nano comparison
Third-party report
Last checked
Research notes (1)
- Published provider limits; maximum-capacity requests have not been independently exercised through TokenBaazar. Thinking-level variants use the same provider model; reasoning and answer tokens share the output budget.