OpenAI model

GPT-5

GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy...

OpenAIVerified 05/10/2026Released 07/08/2025

01 / decision

Decision snapshot

Each figure sits next to the middle of the field, so it can be read as dear or cheap, wide or narrow, rather than floating on its own. Compared against the 370 models tracked here, not against an absolute standard.

Capability

71.8/100

#8 of 35 with published scores

Input / 1M tokens

$1.25

field median $0.40

Output / 1M tokens

$10.00

field median $1.68

Context

400K

field median 262K

Read the coverage before the score. That figure rests on 20% of the weighting: the rest of the categories have no published evidence for this model, and are not counted rather than counted as zero.

02 / overview

What GPT-5 is, and when to reach for it

Four questions, answered separately, because somebody arrives at one of them rather than at the top of the page.

This model has no written explanation yet.

The page is created the moment a model appears in a provider's catalogue, and the writing follows. Until then the measured sections below are the whole page.

What counts as evidence

Follows GPT-4.1 Nano. Superseded by GPT-5 Mini. See the whole line.

03 / evidence

How much of this is verified

Split by category, so a strong number never hides a thin evidence base. Verified means it was read on the benchmark's own published results; a provider's claim about its own model is shown and labelled rather than dropped.

Published rows

1

of 19 benchmarks tracked

Independently verified

1

0 from the provider

Weighting covered

20%

the rest is not measured, not zero

Agentic

0/3

Not measured

Coding

1/3

Verified

Reasoning

0/3

Not measured

Multimodal

0/3

Not measured

Knowledge

0/2

Not measured

Multilingual

0/2

Not measured

Instruction following

0/1

Not measured

Maths

0/2

Not measured

04 / ledger

Benchmark ledger

Every published row, grouped by category, each compared with the best published score on the same benchmark. 'Is 64% good' is a question nobody can answer; '26 points behind the leader' is one anybody can.

Coding1 row
BenchmarkScoreBest publishedWeightEvidence
SWE-bench VerifiedReal GitHub issues, resolved and tested.71.8%Gemini 3 Flash Preview75.8% · 4.0 behind40%Verified

05 / capability

Capability shape

Where this model is strong, and against how many peers. Ranks are against models with evidence in that category, not against every tracked model: ranking against models nobody tested would rank who published, not who is better.

Category recordWriteWorks
CategoryScoreRankWeightBenchmarksEvidence
AgenticNot measuredNot ranked22%0 of 3Not measured
Coding71.8#8 of 3579th percentile20%1 of 3Verified
ReasoningNot measuredNot ranked17%0 of 3Not measured
MultimodalNot measuredNot ranked12%0 of 3Not measured
KnowledgeNot measuredNot ranked12%0 of 2Not measured
MultilingualNot measuredNot ranked7%0 of 2Not measured
Instruction followingNot measuredNot ranked5%0 of 1Not measured
MathsNot measuredNot ranked5%0 of 2Not measured

Category weights are WriteWorks' own and they are a judgement: weighted for what a team buys a model to do. Agentic and coding lead because that is where the work is. Published here rather than hidden, and set out in full on the methodology page.

06 / cost

What it costs

List API rates as last read, each with the date it was confirmed, plus every change recorded since tracking began.

GPT-5 API pricingWriteWorks
ChargePriceUnitRead on
Input$1.25per 1M tokens2026-09-30
Output$10.00per 1M tokens2026-09-30
What a month costsWriteWorks
WorkloadInput / monthOutput / monthCost
A small product team20M tokens5M tokens$75.00
A busy support assistant200M tokens40M tokens$650.00
A document pipeline1000M tokens100M tokens$2,250.00

List API rates, no caching and no batch discount, which both providers offer and which change the answer a great deal. Treat these as the ceiling, not the bill.

07 / specs

Specifications

As listed by the provider's own catalogue and re-read every few hours. Anything absent is absent there too.

SpecificationWriteWorks
Context window400,000 tokens
Maximum output128,000 tokens
Modalitiestext, image, file
Released07/08/2025
StatusCurrent

08 / lineage

Lineage

What this model replaced, what replaced it, and what else its provider has in the field.

Also from OpenAI

All 65 OpenAI models

09 / line

The line

Every model in this family in release order, so a page from eight months ago says in one glance that two newer ones exist.

Came before

← GPT-4.1 Nano

Came after

GPT-5 Mini→
  1. 01GPT-428/05/2023
  2. 02GPT-3.5 Turbo 16k28/08/2023
  3. 03GPT-3.5 Turbo Instruct28/09/2023
  4. 04GPT-3.5 Turbo (older v0613)25/01/2024
  5. 05GPT-4 Turbo09/04/2024
  6. 06GPT-4o-mini18/07/2024
  7. 07GPT-4o (2024-11-20)20/11/2024
  8. 08GPT-4.114/04/2025
  9. 09GPT-4.1 Mini14/04/2025
  10. 10GPT-4.1 Nano14/04/2025
  11. 11GPT-507/08/2025
  12. 12GPT-5 Mini07/08/2025
  13. 13GPT-5 Nano07/08/2025
  14. 14GPT-5 Pro06/10/2025
  15. 15GPT-5 Image14/10/2025
  16. 16GPT-5 Image Mini16/10/2025
  17. 17GPT-5.113/11/2025
  18. 18GPT-5.1-Codex13/11/2025
  19. 19GPT-5.1-Codex-Mini13/11/2025
  20. 20GPT-5.1-Codex-Max04/12/2025
  21. 21GPT-5.210/12/2025
  22. 22GPT-5.2 Chat10/12/2025
  23. 23GPT-5.2 Pro10/12/2025
  24. 24GPT-5.2-Codex14/01/2026
  25. 25GPT-5.3-Codex24/02/2026
  26. 26GPT-5.405/03/2026
  27. 27GPT-5.4 Pro05/03/2026
  28. 28GPT-5.4 Mini17/03/2026
  29. 29GPT-5.4 Nano17/03/2026
  30. 30GPT-5.4 Image 221/04/2026
  31. 31GPT-5.524/04/2026
  32. 32GPT-5.5 Pro24/04/2026
  33. 33GPT-5.6 Luna09/07/2026
  34. 34GPT-5.6 Luna Pro09/07/2026
  35. 35GPT-5.6 Sol09/07/2026
  36. 36GPT-5.6 Sol Pro09/07/2026
  37. 37GPT-5.6 Terra09/07/2026
  38. 38GPT-5.6 Terra Pro09/07/2026
  39. 39GPT-6 Astra04/09/2026
  40. 40GPT-6 Astra Pro04/09/2026
  41. 41GPT-6 Luna22/09/2026
  42. 42GPT-6 Luna Pro22/09/2026
  43. 43GPT-6 Sol22/09/2026
  44. 44GPT-6 Sol Pro22/09/2026
  45. 45GPT-6.1 Sol29/09/2026
  46. 46GPT-6.1 Sol Pro29/09/2026

Ordered by release date and worked out from the naming, so a new member slots in as soon as its page exists. A retired model keeps its page and its place in the line.

10 / notes

WriteWorks notes

What this model changes for a brand trying to be cited in AI answers, and every change logged since it launched.

Change log

Every release, price and feature change for GPT-5, newest first. They also appear on the OpenAI page.

Nothing published here yet. Changes appear within hours of a provider announcing them.

11 / questions

Questions

The things people ask about this model, answered from what is on this page rather than from anywhere else.

What does GPT-5 cost?
$1.25 per million input tokens and $10.00 per million output tokens, as last read from the provider. The cost section works that into a monthly figure.
How current is this page?
The catalogue behind it is re-read every three hours, and the stamp at the top says when it last confirmed. A re-check that finds nothing changed updates that stamp and deliberately does not touch the page’s modified date.
Why are some sections empty?
Because nothing has been published that can be linked to. An empty section is better than a number you cannot check. The methodology sets out what counts.
WriteWorks

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