GPT Chat Latest

by OpenAIChat

Compact GPT model for low-latency assistance and high-volume workloads

Context
400K tokens
Max output
128,000 tokens
Released
2026-05-05
Weights
Closed

openai/gpt-5-5-instant · also seen as gpt-chat-latest

Specifications

Full facts as recorded, incl. what is unknown.

Released
2026-05-05
Weights
Closed
Input
Text, Image, PDF
Output
Text
Context window
400,000 max across endpoints
Max output
128,000
Providers
2 + 1 gateway, not counted as providers
Epoch Capabilities Index
not evaluated
Direct price range
$5.00 in · $30 out per 1M tokens · across all 2 providers
More details
Last updated
2026-05-28
Knowledge cutoff
2025-12-01

Capabilities

Across all endpoints: supported if any endpoint supports it.

  • Tool calling
  • Parallel toolsunknown
  • Structured output
  • Reasoning
  • Image input
  • PDF input
  • Audio input
  • Audio outputunknown
  • Video input
  • Prompt cachingunknown
  • Web searchunknown
  • Computer useunknown
  • System messagesunknown
  • Assistant prefillunknown
  • Temperature
  • Streamingunknown
  • Attachments

Endpoints

One row per provider and variant; gateways are listed separately.

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Price history

No change since 19 Oct 2026. The cheapest direct price has been $5.00 in / $30 out per 1M tokens at Azure on every data refresh since then.

Tracked from 19 Oct 2026. Headline-eligible direct prices only, so a price the sanity check flags never draws a spike. Series as JSON

Cost calculator

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Similarly priced models

Blended rate per 1M tokens, each at its own cheapest provider (10M input : 2M output mix).

ModelBlended/1MIn/1MOut/1MContextvs GPT Chat Latest
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Fugu Ultra v2Sakana AI$9.17$5.00$301M+0%
gpt-image-1.5OpenAI$9.50$5.00$32—+4%
Claude Opus 4.6Anthropic$8.33$5.00$251M−9% cheaper
Claude Opus 4.7Anthropic$8.33$5.00$251M−9% cheaper

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Heads up: prices are indicative list rates scraped from provider pricing pages; verify with the provider before relying on them. Report incorrect data for this model