Compare model

openai / Chat

GPT-5 Fast

openai/gpt-5-low

GPT-5 with low thinking — fastest replies, lowest cost

Catalog status

Enabled

Research checked

2026-10-07

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.

GPT-5 Fast20% · 10 sourced models

Blended price / 1M tokens · log scale

● Current model● Other modelsDashed line: price/score frontier among plotted models
Compare sourced models on this benchmark

Benchmark results

2 reported results

Results are source-attributed, not TokenBazaar measurements. Different tests and thinking variants are not interchangeable.

2 of 2 results

Artificial Analysis Intelligence Index v4.3.2

Reasoning · Third-party report

Test conditions and source

reasoning.effort=low, gpt-5 (API model id `gpt-5`), independent AA harness, index version v4.3.2; '*' marked estimated by publisher due to partial coverage. Publisher excerpt: OpenAI GPT-5 (Low) | Intelligence Index | 21* ... Humanity's Last Exam | 20% ... CritPt | 1% ... AA-Omniscience | −11

Tested model: openai/gpt-5-low

Artificial Analysis · GPT-5 (Low) vs GPT-5 nano (High) comparison · Checked 2026-10-07

21index (est.)

Humanity's Last Exam

Knowledge · Third-party report

Test conditions and source

reasoning.effort=low, no tools, AA independent harness.

Tested model: openai/gpt-5-low

Artificial Analysis · GPT-5 (Low) vs GPT-5 nano (High) comparison · Checked 2026-10-07

20%

Model specifications

Context window

400K

Published provider limit

Maximum output

128K

Published provider limit

Knowledge cutoff

Sep 30, 2024

Upstream model

Input and output modalities

Provider-reported formats; API compatibility is detailed below.

Input

Text
Image

Output

Text
Exact model ID
openai/gpt-5-low
Model type
Chat
Context window
400,000 tokens
Maximum output
128,000 tokens
Knowledge cutoff
Sep 30, 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.

GPT-5₹60.00 in / ₹480.00 out per 1M tokens
GPT-5 Deep₹60.00 in / ₹480.00 out per 1M tokens
GPT-5 FastSelected₹60.00 in / ₹480.00 out per 1M tokens
GPT-5 Max₹60.00 in / ₹480.00 out per 1M tokens

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: low. 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

Available

Incremental text through TokenBazaar’s chat endpoint; Claude also has native Messages access.

Customer-defined function tools

Limited

Only customer-defined function tools are forwarded. Model/protocol compatibility applies; your application authorizes and executes every tool.

Forced or named tool selection

Limited

The chat route accepts auto, none and required. A named-tool choice is not forwarded; exact model compatibility is not independently tested.

Images and PDFs

Limited

The 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 exposed

No 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 exposed

No built-in execution environment or computer-control tool is provided. Code generation is not code execution.

Hosted file search / persistent assistants

Not exposed

No hosted file-search index, Assistants endpoint or persistent provider agent is exposed.

Batch / fine-tuning / cached-price discounts

Not exposed

No 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.

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.