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Data

GPT-5.2-Codex vs Inworld Realtime TTS-2 Flash

Updated November 13, 2026. We do not rank this pair: at least one has no public score. Public scores include evidence status and uncertainty.

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Decision reading

The public evidence has no benchmark result shared by both models, so it does not support a quality verdict. Use the documented cost, context, and runtime rows instead. 0 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

Model A
OpenAI logo

OpenAI

55.74/100

Estimated · Public rank #64

Conditional range 46.0–65.5

Model B
Inworld logo

Inworld

—

Evidence status unavailable

90% interval unavailable

API price per 1M tokens

GPT-5.2-Codex: $1.75 input / $14 output

Inworld Realtime TTS-2 Flash: No comparable API price

Context window

GPT-5.2-Codex: 400K

Inworld Realtime TTS-2 Flash: N/A

Released

GPT-5.2-Codex: December 18, 2025

Inworld Realtime TTS-2 Flash: August 31, 2026

Shared results
0
GPT-5.2-Codex only
6
Inworld Realtime TTS-2 Flash only
0
Like-for-like categories
0 / 8
Estimated: GPT-5.2-Codex. Conditional ranges do not establish rank confidence.How the comparison works

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

No workload recommendation clears the current evidence threshold.

Use the matched evidence, workload costs, and sourced specifications below instead of treating a point score as a universal answer.

Show secondary and unsupported calls
  • Coding work

    Code generation, repair, and software-engineering tasks

    Not enough matched evidence

    Inworld Realtime TTS-2 Flash is not ranked on the public lane for coding, so no winner is named for coding.

    Confidence: limited
  • Agentic work

    Tool use, computer use, and multi-step task completion

    Not enough matched evidence

    Inworld Realtime TTS-2 Flash is not ranked on the public lane for agentic, so no winner is named for agentic.

    Confidence: limited
  • Long documents

    Prompts that approach the documented context limit

    Not enough matched evidence

    A complete context comparison is not sourced.

    Confidence: limited
  • Chat turn cost

    1K fresh input + 500 output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates
  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: rate-fallback
  • Repository review cost

    50K fresh input + 3K output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

Which one for a specific job

Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.

The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.

45.0GPT-5.2-Codex—Inworld Realtime TTS-2 Flash

Not comparable · BenchAlign v5.8

The coding row is not comparable on the public lane: at least one model is not measured or not ranked there.

Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.

Same basis rules as the category table below

Or describe your own job

The LLM Selector reads what you need a model for and returns a shortlist, ranked in the same order the job pages publish.

Describe the task and constraints. This selector recommends models; it cannot carry out the task or access your files and accounts.

We keep what you type here, drafts included, for 180 days, and after that only the job and requirements read from it. Nothing is tied to your IP address or account. Leave out names and other personal details. Privacy

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

A shared-evidence shape is not available.

BenchLM does not draw a radar or infer missing axes when the matched evidence is too sparse.

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign v5.8 lane for agentic, coding, reasoning, multimodal, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.

Agentic

Not comparable
GPT-5.2-Codex
43.1
Estimated · #67/135
Inworld Realtime TTS-2 Flash
Not ranked
Basis
BenchAlign v5.8 lane · 2 vs 0 public rows
Reading
Not comparable

Coding

Not comparable
GPT-5.2-Codex
45.0
Supported · #60/162
Inworld Realtime TTS-2 Flash
Not ranked
Basis
BenchAlign v5.8 lane · 4 vs 0 public rows
Reading
Not comparable

Reasoning

Not comparable
GPT-5.2-Codex
43.6
Estimated · #75/160
Inworld Realtime TTS-2 Flash
Not ranked
Basis
BenchAlign v5.8 lane · 0 vs 0 public rows
Reading
Not comparable

Multimodal

Not comparable
GPT-5.2-Codex
Not ranked
Inworld Realtime TTS-2 Flash
Not ranked
Basis
BenchAlign v5.8 lane · 0 vs 0 public rows
Reading
Not comparable

Knowledge

Not comparable
GPT-5.2-Codex
57.1
Estimated · #59/180
Inworld Realtime TTS-2 Flash
Not ranked
Basis
BenchAlign v5.8 lane · 0 vs 0 public rows
Reading
Not comparable

Multilingual

Not comparable
GPT-5.2-Codex
Not ranked
Inworld Realtime TTS-2 Flash
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Instruction following

Not comparable
GPT-5.2-Codex
93.8
#5/157
Inworld Realtime TTS-2 Flash
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
GPT-5.2-Codex
Not ranked
Inworld Realtime TTS-2 Flash
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Ranks count the models scored in each category’s lane, so the agentic, coding, reasoning, multimodal, and knowledge denominators (BenchAlign v5.8) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

Supported evidence per lane · bars run 0–100Methodology

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

GPT-5.2-Codex
$0.00875
Fits in one request
Inworld Realtime TTS-2 Flash
API rate not published
Fit state unavailable

Inworld Realtime TTS-2 Flash has no comparable published API token rate.

Repository review

50K fresh input + 3K output tokens

GPT-5.2-Codex
$0.1295
Fits in one request
Inworld Realtime TTS-2 Flash
API rate not published
Fit state unavailable

Inworld Realtime TTS-2 Flash has no comparable published API token rate.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

GPT-5.2-Codex
$0.525
Fits in one request
Cached input priced at the published list-input rate
Inworld Realtime TTS-2 Flash
API rate not published
Fit state unavailable
Cached-input rate unavailable

GPT-5.2-Codex has no published cached-input rate, so cached tokens use its listed input rate. Inworld Realtime TTS-2 Flash has no comparable published API token rate.

Cached input falls back to the list input rate only where a cached rate is unpublished

Price against score, among all priced models

Overall score against output price per 1M tokens, one model per family. Pricing as of November 12, 2026.

GPT-5.2-Codex

20406080100$0.10$0.50$1$5$10$50$100Output price, $ per 1M tokens (log)Overall score
  • 24 models score at least as high as GPT-5.2-Codex for the same price or less. The nearest is GPT-5.3 Codex (score 61.7, also $14.00 per 1M output tokens).
  • Inworld Realtime TTS-2 Flash has no overall score yet, so it is not plotted.

Gray dots are the other priced models. The dark step line is the efficiency frontier: for a model under it, another model costs no more and scores at least as high.

See GPT-5.2-Codex on the full price vs performance chart

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

Context window

Maximum documented context; output-token limits may be lower.

GPT-5.2-Codex

400K

Inworld Realtime TTS-2 Flash

N/A

Cached-input rate

A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.

GPT-5.2-Codex

Not published

Inworld Realtime TTS-2 Flash

No comparable hosted API rate

Inworld model documentation

Provider availability

GPT-5.2-Codex

Not sourced

Inworld Realtime TTS-2 Flash

Not sourced

Reasoning profile

GPT-5.2-Codex

Reasoning

Inworld Realtime TTS-2 Flash

Non-Reasoning

Weight access

GPT-5.2-Codex

Proprietary

Inworld Realtime TTS-2 Flash

Proprietary

License

GPT-5.2-Codex

Proprietary

Inworld Realtime TTS-2 Flash

Proprietary

Release date

GPT-5.2-Codex

2025-12-18

Inworld Realtime TTS-2 Flash

2026-08-31

If you already use one of these models

Deployment change
The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
Quality signal
The public evidence has no benchmark result shared by both models, so it does not support a quality verdict.
Workload cost
A complete comparable API-rate estimate is not available for both models.
Context tradeoff
A complete documented context comparison is not available.
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, GPT-5.2-Codex or Inworld Realtime TTS-2 Flash?

The public evidence has no benchmark result shared by both models, so it does not support a quality verdict. The page therefore keeps the decision tied to the specific documented workload.

Which is better for coding, GPT-5.2-Codex or Inworld Realtime TTS-2 Flash?

Inworld Realtime TTS-2 Flash is not ranked on the public lane for coding, so no winner is named for coding.

Which is better for agentic tasks, GPT-5.2-Codex or Inworld Realtime TTS-2 Flash?

Inworld Realtime TTS-2 Flash is not ranked on the public lane for agentic tasks, so no winner is named for agentic tasks.

Which costs less, GPT-5.2-Codex or Inworld Realtime TTS-2 Flash?

Both models do not have comparable published API token rates, so this page does not name a universal price winner.

Which has the larger context window, GPT-5.2-Codex or Inworld Realtime TTS-2 Flash?

A complete documented context-window comparison is not available.

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence6 rows

Agentic

  • Gert Labs

    GPT-5.2-Codex51.79%
    Source
    Inworld Realtime TTS-2 Flash—

    Not directly comparable

  • JobBench

    GPT-5.2-Codex26.0%
    Source
    Inworld Realtime TTS-2 Flash—

    Not directly comparable

Coding

  • Vibe Code Bench

    GPT-5.2-Codex37.91%
    Source
    Inworld Realtime TTS-2 Flash—

    Not directly comparable

  • LiveCodeBench (Vals)

    GPT-5.2-Codex88.0%
    Source
    Inworld Realtime TTS-2 Flash—

    Not directly comparable

  • SWE-bench (Vals)

    GPT-5.2-Codex72.4%
    Source
    Inworld Realtime TTS-2 Flash—

    Not directly comparable

  • PostTrainBench v1

    GPT-5.2-Codex17.2%
    Source
    Inworld Realtime TTS-2 Flash—

    Not directly comparable

6 public results · 0 shared

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Last updated November 13, 2026