OpenAI: GPT-5 Chat

openai/gpt-5-chat

GPT-5 Chat (OpenAI) ranks #49 of 260 on the TryAii Score at $1.25/$10 per million input/output tokens, though GLM 5.3 Flash matches it for $0.2 per million output tokens.

Prompt $/1M

$1.250

Completion $/1M

$10.000

Context

128,000 tok

Best provider

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Specs

Model id: openai/gpt-5-chat
Display name: OpenAI: GPT-5 Chat
Modality: text+image+file->text
Tokenizer: GPT
Instruct type: —
Context length: 128,000
Max completion: 16,384
Prompt $/1M: $1.250
Completion $/1M: $10.000
Free tier: no

Capabilities

Function callingno
JSON modeno
System promptno
Visionyes
Moderatedyes

Benchmark scores

Each axis is one benchmark, normalized to the best model in the field.

No benchmark data for this model.

Speed by provider

Provider	tok/s	TTFT	Total latency
No speed data.

Prompt caching by provider

Provider	Min tokens to cache	Notes
OpenAI	1,024 tokens	GPT-5.x pre-5.6: 90% cached-read discount, free cache writes. 5-10 min sliding TTL; extended retention up to 24h on eligible models (non-ZDR default since May 2026).